CN217788853U - Connector Housing Assemblies and Connectors - 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 Assemblies and Connectors

technical field

The utility model relates to a connector shell assembly and a connector comprising the connector shell assembly.

Background technique

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

In the prior art, the terminal locking member usually needs to be assembled at the customer end. Therefore, in the delivery state, the terminal locking member is prone to falling off or shifting due to external force, which affects the subsequent assembly of the customer. Moreover, after the client is assembled, the terminal locking member still has the risk of falling off during long-term use, which affects product reliability.

In addition, in the prior art, the terminal locking member needs to occupy a relatively large space, resulting in an excessively large volume and high cost of the entire radio frequency coaxial connector. Moreover, the contact area between the terminal locking member and the terminal is small, and the holding force for the terminal is insufficient.

Utility model content

The purpose of this utility model is to solve at least one aspect of the above-mentioned problems and defects existing in the prior art.

According to one aspect of the present invention, a connector housing assembly is provided, comprising: an outer housing including a peripheral wall surrounding an inner cavity; an inner housing inserted into the inner cavity of the outer housing and adapted to The axial direction of the outer casing moves between a pre-lock position and a final lock position. A terminal insertion hole for allowing the terminal to be inserted and an elastic lock for locking the terminal are formed on the inner housing, and the elastic lock is suitable for engaging with the terminal along the radial direction of the outer housing. Moves between a locked position and an unlocked position separated from the terminals. When the inner housing is in the pre-lock position, the elastic lock is not constrained by the peripheral wall of the outer housing and can be elastically deformed in the radial direction to allow the terminal to be inserted into the inner housing Middle; when the inner housing is in the final locking position, the elastic lock is constrained by the peripheral wall of the outer housing and cannot be elastically deformed outward along the radial direction, so that the elastic lock is held in the locked position to lock the inserted terminal.

According to an exemplary embodiment of the present invention, an avoidance opening is formed on the peripheral wall of the outer housing; when the inner housing is in the pre-lock position, the elastic lock is aligned with the avoidance opening , so as not to be constrained by the peripheral wall of the outer casing.

According to another exemplary embodiment of the present utility model, when the inner housing is in the final locking position, the inner wall surface of the peripheral wall of the outer housing abuts against at least a part of the elastic lock, so that The resilient catch is held in the locked position.

According to another exemplary embodiment of the present invention, the inner cavity of the outer casing has a front opening and a rear opening opposite to each other in the axial direction, and the inner casing is inserted through the rear opening of the outer casing. into the inner cavity of the outer shell; when the inner shell is in the pre-lock position and the terminal has been inserted into the predetermined installation position in the inner shell, the inner shell can be The pre-lock position moves backward along the axial direction to the final lock position.

According to another exemplary embodiment of the present invention, the elastic lock includes: an elastic cantilever extending forward for a predetermined length along the axial direction; and a first protrusion protrudingly formed on the elastic cantilever On the inner side of the free end, the first protrusion is adapted to engage with a recess on the terminal to lock the terminal.

According to another exemplary embodiment of the present utility model, a radial blocking surface is formed inside the inner casing; when the terminal is inserted into a predetermined installation position in the inner casing, the radial blocking surface The blocking surface axially abuts against the mating blocking surface of the terminal, so as to prevent the terminal from moving forward along the axial direction.

According to another exemplary embodiment of the present invention, the first protrusion has a first blocking surface; when the terminal is inserted into a predetermined installation position in the inner housing, the first blocking surface The axial direction abuts against the first mating blocking surface of the terminal to prevent the terminal from moving backward along the axial direction.

According to another exemplary embodiment of the present invention, the elastic lock further includes: a second protrusion protrudingly formed on the outer side of the free end of the elastic cantilever and having a second blocking surface. The escape opening of the outer housing has a second mating blocking surface; when the inner housing is in the final locking position, the second blocking surface abuts against the second mating blocking surface to prevent The inner housing moves rearward along the axial direction.

According to another exemplary embodiment of the present utility model, an elastic buckle is formed on the inner housing, and a final locking hole is formed on the peripheral wall of the outer housing. When the inner housing is at the final locking position, the elastic buckle engages with the final locking hole, and the wall of the final locking hole prevents the inner housing from moving forward along the axial direction.

According to another exemplary embodiment of the present invention, the elastic buckle includes: a cantilever portion extending forward along the axial direction; and a protruding portion protrudingly formed on the outer side of the cantilever portion. The protrusion has a final locking surface, and the outer shell has a mating final locking surface on one side of the final locking hole; when the inner housing is in the final locking position, the final locking surface The axial direction abuts against the mating final locking surface to prevent the inner housing from moving forward along the axial direction.

According to another exemplary embodiment of the present utility model, a pre-lock hole is formed on the peripheral wall of the outer shell, the pre-lock hole is axially spaced from the final lock hole and is located in the final lock hole the front of the front; the protrusion also has a pre-lock surface, and the outer shell has a matching pre-lock surface on one side of the pre-lock hole; when the inner shell is in the pre-lock position, the The pre-locking surface abuts against the mating pre-locking surface, so that the inner housing can only move backward along the axial direction when it is subjected to an axially backward external force greater than a predetermined value, When an external force is applied to the axis of the value, it cannot move backwards along the axis.

According to another exemplary embodiment of the present utility model, a boss portion is formed on the outer casing, the boss portion is located between the pre-lock hole and the final lock hole, and the matching pre-lock hole The locking surface and the mating final locking surface are two sides of the boss part.

According to another exemplary embodiment of the present invention, the cantilever portion protrudes radially from the outer surface of the inner casing; the inner peripheral wall of the outer casing is provided with an axially extending mating 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 utility model, an inclined guide part is formed on the inner peripheral wall of the outer casing on the rear end, for guiding the protrusion into the matching groove.

According to another exemplary embodiment of the present utility model, a blocking surface is formed outside the inner casing, and a matching blocking surface is formed inside the outer casing; when the inner casing is in the predetermined In the locked position, the preventing surface axially abuts against the mating preventing surface, so as to prevent the inner housing from moving forward along the axial direction.

According to another exemplary embodiment of the present invention, the elastic lock further includes: a third protrusion protrudingly formed on one side of the free end of the elastic cantilever. The escape opening of the outer casing has a third blocking surface. When the inner housing is at the pre-lock position and the terminal is not inserted into the inner housing at a predetermined installation position, the third protrusion is pushed outward by the terminal along the radial direction , so that the third protrusion is in a position interfering with the third blocking surface, so as to prevent the inner housing from being moved from the pre-lock position toward the final lock position; when the inner housing is in the position When the pre-lock position and the terminal have been inserted into the predetermined installation position in the inner housing, the third protrusion is in a position that does not interfere with the third blocking surface, so as to allow the inner housing is moved from the pre-lock position towards the final lock position.

According to another aspect of the present invention, a connector is provided, including: a connector housing assembly and terminals, the terminals are inserted into the terminal insertion holes of the inner housing. A concave portion is formed on the terminal, and the concave portion engages with the first protrusion of the elastic lock so that the terminal is locked in the terminal insertion hole.

According to an exemplary embodiment of the present invention, a radial boss is formed on the terminal, and the radial boss has a mating blocking surface, and the mating blocking surface axially abuts against the inner The radial blocking surface of the housing is used to prevent the terminal from moving forward along the axial direction.

According to another exemplary embodiment of the present invention, the connector further includes a cable, and the cable is connected to the terminal to form a cable assembly, so as to be inserted into the terminal insertion hole together with the terminal.

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

In each of the foregoing exemplary embodiments according to the present invention, before the client terminal is inserted into the terminal, the inner housing for locking the terminal is pre-installed in the outer housing and is reliably held in the pre-lock position by the outer housing, There is no risk of shifting and falling off, which improves the reliability of the product.

In addition, in some of the foregoing exemplary embodiments of the present invention, the terminals are locked in the inner housing through the internal structure of the inner housing, therefore, no additional terminal locking parts are needed, and the volume of the connector is reduced. In addition, in the present invention, when the inner housing is in the final lock position, the restraint of the elastic lock by the peripheral wall of the outer housing can improve the holding force of the elastic lock to the terminal.

Through the following description of the utility model with reference to the accompanying drawings, other purposes and advantages of the utility model will be apparent, and can help to have a comprehensive understanding of the utility model.

Description of drawings

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 is in a pre-lock position;

Fig. 2 shows an exploded schematic diagram of a connector housing assembly according to an exemplary embodiment of the present invention, wherein the inner housing is in a pre-lock position;

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

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

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

Fig. 6 shows a schematic exploded cross-sectional view of the connector housing assembly along another direction according to an exemplary embodiment of the present invention, wherein the inner housing is in the 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 is in a pre-lock position;

Fig. 8 shows a schematic perspective 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, wherein the inner housing is in a pre-lock position;

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

Fig. 11 shows a cross-sectional view of a connector according to an exemplary embodiment of the present invention viewed from the upper side, wherein the inner housing is 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 along one direction of the connector according to an exemplary embodiment of the present invention, wherein the inner housing is in the final locking position;

Fig. 14 shows a sectional view along another direction of the connector according to an exemplary embodiment of the present invention, wherein the inner housing is in the final locking position;

Fig. 15 shows a schematic perspective view of a connector according to an exemplary embodiment of the present invention, wherein a rear end cover is installed on the rear end of the inner housing;

Fig. 16 shows an open state view of the rear end cover of the connector according to an exemplary embodiment of the present invention when viewed from the front side;

Fig. 17 shows an open state view of the rear end cover of the connector according to an exemplary embodiment of the present invention when viewed from the rear side;

Fig. 18 shows a closed state view of the rear end cover of the connector according to an exemplary embodiment of the present invention viewed from the rear side.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals designate the same or similar components. The following descriptions of the embodiments of the utility model with reference to the accompanying drawings are intended to explain the overall utility model concept of the utility model, and should not be construed as a limitation of the utility model.

In addition, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a comprehensive understanding of the embodiments of the present 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 diagrammatic form to simplify the drawings.

According to a general technical concept of the utility model, a connector housing assembly is provided, including: an outer housing 1 including a peripheral wall surrounding an inner cavity 101; and an inner housing 2 inserted into the outer housing 1 The cavity 101 is suitable for moving along the axial direction of the outer casing 1 between a pre-lock position and a final lock position. A terminal insertion hole 201 for allowing the terminal 30 to be inserted and an elastic latch 22 for locking the terminal 30 are formed on the inner housing 2, and the elastic latch 22 is adapted to move along the radial direction of the outer housing 1. Moves between a locked position engaged with the terminal 30 and an unlocked position disengaged from the terminal 30 . When the inner housing 2 is in the pre-lock position, the elastic lock 22 is not constrained by the peripheral wall of the outer housing 1 and can be elastically deformed in the radial direction to allow the terminal 30 to be inserted into the In the inner casing 2; when the inner casing 2 is in the final locking position, the elastic lock 22 is constrained by the peripheral wall of the outer casing 1 and cannot be elastically deformed outward along the radial direction, The elastic lock 22 is kept at the locking position to lock the inserted terminal 30 .

According to another general technical idea of the present invention, a connector is provided, including: the connector housing assembly and the terminal 30 . The terminals 30 are inserted into the terminal insertion holes 201 of the inner housing 2 . A concave portion 321 is formed on the terminal 30 , and the concave portion 321 engages with the first protrusion 221 of the elastic lock 22 so that the terminal 30 is locked in the terminal insertion hole 201 .

Figure 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; Figure 2 shows the connection according to an exemplary embodiment of the present invention An exploded schematic view of the connector housing assembly, wherein the inner housing 2 is in the pre-lock position; FIG. In the pre-lock position; FIG. 4 shows a schematic diagram of a cross-sectional exploded view of the connector housing assembly along one direction according to an exemplary embodiment of the present invention, wherein the inner housing 2 is in the pre-lock position; FIG. A cross-sectional view of the connector housing assembly of an exemplary embodiment of the utility model along another direction, wherein the inner housing 2 is in the pre-lock position; FIG. 6 shows a connector according to an exemplary embodiment of the utility model A schematic exploded cross-sectional view of the housing assembly along 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 In the pre-lock position; FIG. 8 shows a schematic perspective view of the cable assembly 3 of the connector according to an exemplary embodiment of the present invention.

As shown in FIGS. 1 to 8 , in the illustrated embodiment, the connector mainly includes connector housing components 1 , 2 and a cable component 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 terminal 30 is inserted into the inner housing 2 .

Figure 9 shows a cross-sectional view of a connector according to an exemplary embodiment of the present invention when viewed from the front side, wherein the inner housing 2 is in a pre-lock position; Figure 10 shows a connector according to an exemplary embodiment of the present invention. A sectional view of the connector viewed from the rear side, wherein the inner housing 2 is in the pre-lock position; FIG. 11 shows a sectional view of the connector viewed from the upper side according to an exemplary embodiment of the present invention, wherein the inner housing 2 Body 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 view of a connector according to an exemplary embodiment of the present invention along a A cross-sectional view of the direction in which the inner housing 2 is in the final locking position; FIG. 14 shows a cross-sectional view of the connector according to an exemplary embodiment of the present invention along another direction, in which the inner housing 2 is in the final locking position.

As shown in FIGS. 1 to 14 , in an exemplary embodiment of the present 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 casing 1 includes a peripheral wall surrounding an inner chamber 101 . The inner housing 2 is inserted into the inner chamber 101 of the outer housing 1 and is adapted to move along the axial direction of the outer housing 1 between a pre-lock position and a final lock position.

As shown in FIGS. 1 to 14 , in the illustrated embodiment, a terminal insertion hole 201 allowing the terminal 30 to be inserted and an elastic lock 22 for locking the terminal 30 are formed on the inner housing 2 . The elastic lock 22 It is suitable for moving along the radial direction of the outer casing 1 between a locked position engaged with the terminal 30 and an unlocked position separated from the terminal 30 .

As shown in Figures 1 to 14, in the illustrated embodiment, when the inner housing 2 is in the pre-lock position, the elastic lock 22 is not constrained by the peripheral wall of the outer housing 1, and can be elastically deformed in the radial direction, so as to Insertion of the terminal 30 into the inner case 2 is allowed.

As shown in FIGS. 1 to 14 , in the illustrated embodiment, when the inner housing 2 is in the final locking position, the elastic lock 22 is constrained by the peripheral wall of the outer housing 1 and cannot be elastically deformed radially outward. This causes the elastic lock 22 to be held at the locked position to lock the inserted terminal 30 .

As shown in FIGS. 1 to 14 , in the illustrated embodiment, an escape opening 12 is formed on the peripheral wall of the outer casing 1 . When the inner housing 2 is in the pre-lock position, the elastic lock 22 is aligned with the avoidance opening 12 and is adapted to be accommodated in the avoidance opening 12 so as not to be constrained by the peripheral wall of the outer housing 1 .

As shown in Figures 1 to 14, in the illustrated embodiment, when the inner housing 2 is in the final lock position, the inner wall surface of the peripheral wall of the outer housing 1 abuts against at least a part of the elastic lock 22, so that the elastic The catch 22 is held in the locked position.

As shown in Figures 1 to 14, in the illustrated embodiment, the inner chamber 101 of the outer casing 1 has a front opening and a rear opening opposite in the axial direction, and the inner casing 2 is inserted through the rear opening of the outer casing 1. into the inner cavity 101 of the outer shell 1. When the inner housing 2 is in the pre-lock position and the terminal 30 has been inserted into the predetermined installation position in the inner housing 2, the inner housing 2 can move axially backward from the pre-lock position to the final lock position.

As shown in FIGS. 1 to 14 , in the illustrated embodiment, the elastic lock 22 includes: an elastic cantilever 220 and a first protrusion 221 . The elastic cantilever 220 extends axially forward for a predetermined length. The first protrusion 221 is protrudingly formed on the inner side of the free end of the elastic cantilever 220 . The first protrusion 221 is used to engage with the concave portion 321 on the terminal 30 to lock the terminal 30 .

As shown in FIGS. 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 against the elastic cantilever 220 of the elastic lock 22 , so that The elastic catch 22 is held in the locked position.

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

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

As shown in FIGS. 1 to 14 , in the illustrated embodiment, the elastic latch 22 further includes a second protrusion 222 protrudingly formed on the outer side of the free end of the elastic cantilever 220 and having a first Two blocking surfaces 222a. The escape opening 12 of the outer casing 1 has a second mating blocking surface 122a. When the inner housing 2 is at the final lock position, the second blocking surface 222a abuts against the second mating blocking surface 122a to prevent the inner housing 2 from moving backward in the axial direction.

As shown in FIGS. 1 to 14 , in the illustrated embodiment, the inner housing 2 is further formed with an elastic buckle 21 , and a final 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 buckle 21 engages with the final locking hole 14 to prevent the inner housing 2 from moving forward in the axial direction.

As shown in FIGS. 1 to 14 , in the illustrated embodiment, the elastic buckle 21 includes: a cantilever portion 210 and a protruding portion 211 . The cantilever portion 210 extends forward in the axial direction. The protrusion part 211 is protrudingly formed on the outer side of the cantilever part 210 . The protruding portion 211 has a final locking surface 211b, and the outer shell 1 has a mating final locking surface 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 surface 211b axially abuts against the mating final locking surface 14b to prevent the inner housing 2 from moving forward in the axial direction.

As shown in Figures 1 to 14, in the illustrated embodiment, a pre-lock hole 11 is also formed on the peripheral wall of the outer shell 1, and the pre-lock hole 11 is axially spaced from the final lock hole 14 and is located in the final lock hole. 14 ahead. The protruding part 211 also has a pre-lock surface 211a, and the outer shell 1 has a matching pre-lock surface 11a located on one side of the pre-lock 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 only move axially backward when subjected to an axially backward external force greater than a predetermined value It cannot move axially backward when subjected to an axially backward external force not greater than a predetermined value.

As shown in FIGS. 1 to 14 , in the illustrated embodiment, a boss portion 111 is formed on the outer casing 1 , and the boss portion 111 is located between the pre-lock hole 11 and the final lock hole 14 . The matching pre-locking surface 11 a and the mating final locking surface 14 b are two side surfaces of the boss portion 111 . However, please note that the boss portion 111 is not necessary, and the outer surface of the outer casing 1 may be flat. At this time, the matching pre-locking surface 11 a can be directly formed by the hole wall of the pre-locking hole 11 , and the mating final locking surface 14 b can be directly formed by the hole wall of the final locking hole 14 .

As shown in FIGS. 1 to 14 , in the illustrated embodiment, the cantilever portion 210 protrudes radially from the outer surface of the inner casing 2 . An axially extending mating groove 110 is formed on the inner peripheral wall of the outer housing 1 , so that the cantilever portion 210 is accommodated in the mating groove 110 and moves axially. The inner peripheral wall of the outer casing 1 is formed with an inclined guide portion 110 a on the rear end portion for guiding the protrusion 211 into the mating groove 110 .

As shown in FIGS. 1 to 14 , in the illustrated embodiment, a blocking surface 23 a is formed outside the inner casing 2 , and a mating blocking surface 13 a is formed inside the outer casing 1 . When the inner housing 2 is in the pre-lock position, the blocking surface 23a axially abuts against the mating blocking surface 13a to prevent the inner housing 2 from moving forward in the axial direction.

As shown in FIGS. 1 to 14 , in the illustrated embodiment, an annular radial protrusion 13 is formed inside the outer casing 1 , and the mating blocking surface 13 a is the rear side of the annular radial protrusion 13 .

As shown in FIGS. 1 to 14 , in the illustrated embodiment, the elastic lock 22 further includes a third protrusion 223 . The third protrusion 223 is protrudingly formed on one side of the free end of the elastic cantilever 220 . The escape opening 12 of the outer casing 1 has a third blocking surface 123a.

As shown in FIGS. 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 predetermined installation position in the inner housing 2, the third protrusion 223 is The terminal 30 is pushed outward in the radial direction, so that the third protrusion 223 is in a position interfering with the third blocking surface 223a, so as to prevent the inner housing 2 from being moved from the pre-lock position to the final lock position.

As shown in Figures 1 to 14, in the illustrated embodiment, when the inner housing 2 is in the pre-lock position and the terminal 30 has been inserted into the inner housing 2 at a predetermined installation position, the third protrusion 223 is in the The non-interfering position with the third blocking surface 223a allows the inner housing 2 to be moved from the pre-lock position to the final lock position.

As shown in FIGS. 1 to 14 , in another exemplary embodiment of the present invention, a connector is also disclosed. The connector includes: connector housing components 1 , 2 and terminals 30 . The terminal 30 is inserted into the terminal insertion hole 201 of the inner case 2 . A concave portion 321 is formed on the terminal 30 , and the concave portion 321 engages with the first protrusion 221 of the elastic lock 22 so that the terminal 30 is locked in the terminal insertion hole 201 .

As shown in FIGS. 1 to 14 , in the illustrated embodiment, the concave portion 321 of the terminal 30 has a first mating blocking surface 321a, and the first mating blocking surface 321a axially abuts against the first protrusion 221 of the first protrusion 221. on a blocking surface 221a to prevent the terminal 30 from moving backward in the axial direction.

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

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

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

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

Figure 15 shows a schematic perspective view of a connector according to an exemplary embodiment of the present invention, wherein a rear end cover 4 is installed on the rear end 28 of the inner housing 2; Figure 16 shows an example according to the present invention Figure 17 shows the rear end cover 4 of the connector according to an exemplary embodiment of the present utility model when viewed from the rear side Figure 18 shows a closed state view of the rear end cover 4 of the connector according to an exemplary embodiment of the present invention when viewed from the rear side.

As shown in FIGS. 1 to 18 , in the illustrated embodiment, the connector further includes a rear end cover 4 . The rear end cover 4 is mounted on the rear end portion 28 of the inner housing 2 and has a cable through hole 401 formed on its end wall 420 for allowing the cable 31 to pass through. The diameter of the cable through hole 401 is smaller than that of the terminal through hole 201 and equal to or slightly larger than the outer diameter of the cable 31 to prevent the cable 31 from shaking in the radial direction.

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

As shown in FIGS. 1 to 18 , in the illustrated embodiment, by bending the two bendable connecting portions 43 , the two second end cap portions 42 can be opened and closed relative to the first end cap portion 41 .

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

As shown in Figures 1 to 18, in the illustrated embodiment, a first locking groove 4a is formed on the first peripheral wall portion 411, and a different groove 4a is formed on the second peripheral wall portion 421. The second card slot 4b. A first protrusion 28a and a second protrusion 28b respectively engaged with the first locking groove 4a and the second locking groove 4b are formed on the rear end portion 28 of the rear end cover 4 . In this way, the rear end cover 4 can be mounted on the rear end portion 28 of the inner housing 2 .

As shown in FIGS. 1 to 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 shielding layer of the cable. However, the connector of the present invention is not limited to the illustrated embodiment, and may also be other types of connectors.

Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can improve them, and the structures described in various embodiments do not conflict with each other in terms of structure or principle Under the situation that can carry out free combination, these changes should fall within the scope of protection of the present utility model.

Although the utility model has been described in conjunction with the drawings, the embodiments disclosed in the drawings are intended to illustrate the preferred implementation of the utility model, and should not be construed as a limitation of the utility model.

Although some embodiments of the general concept of the present invention have been shown and described, those skilled in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the general concept of the present invention. , the scope of the present invention is defined by the claims and their equivalents.

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