CN112332172A

CN112332172A - Plug connector and connector assembly

Info

Publication number: CN112332172A
Application number: CN202011131885.0A
Authority: CN
Inventors: 王恒; 刘向阳; 许蔚; 李立新; 张志中; 韩云钊; 李卫可; 武学顺; 徐耕; 邹宏飞; 全硒硼; 柳先波; 田旭; 习冰寒; 闫丰献; 胡竣浩
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-02-05

Abstract

The invention provides a plug connector and a connector assembly, the plug connector comprises: an inner conductive shell; a tail sleeve; the power supply conducting part is arranged in the first insulator and comprises a plug contact piece, a second insulator and an elastic washer are arranged outside the plug contact piece, the elastic washer is in blocking fit with the front end face of the first insulator, and an annular flange is arranged on the outer surface of the first insulator; a conductive sheet in stop fit with the annular flange is arranged at the front end of the shielding conductive part; the clamp spring is positioned on the rear side of the conducting plate; the inner conductive shell is provided with a stopping step and an annular clamping groove, the distance between the stopping step and the annular clamping groove meets the requirement that after the clamping spring is clamped into the clamping groove, the elastic washer is compressed to apply backward acting force on the first insulator, and the annular flange abuts against the conductive sheet on the end face of the clamping spring. The tail sleeve does not need to be provided with a jacking structure, the structure of the tail sleeve can be simplified, and meanwhile, during installation, the clamp spring only needs to be clamped into the annular clamping groove by using a tool, so that the installation is convenient.

Description

Plug connector and connector assembly

Technical Field

The invention relates to the technical field of connectors, in particular to a plug connector and a connector assembly.

Background

When the chassis cabinet is designed to be grounded or shielded, the connector of the chassis cabinet interface needs to be communicated with the chassis cabinet panel, so that the shielding layer of the cable connected with the connector is communicated with the panel, and the grounding or shielding effect of the whole link is realized.

The prior art connector assembly is shown in fig. 1, and includes a plug connector and a receptacle connector, the receptacle connector includes a receptacle conductive housing 200 fixed on the cabinet panel 100, the plug connector includes a plug front end conductive housing 300 in plug-in conductive fit with the receptacle conductive housing 200, and a plug sleeve 400 screwed on the rear end of the plug front end conductive housing 300.

The cable 700 is fixedly connected to the plug connector, a shielding conductive part is arranged in the plug sleeve 400, the shielding conductive part comprises a shielding cylinder 501 and a shielding block 502 connected with the rear end of the shielding cylinder 501, a transverse through hole is formed in the shielding block 502, and a screw 600 with the front end extending into the transverse through hole is further mounted on the shielding block 502. The cable 700 has a shield 701, the shield 701 is twisted into a strand to form a stranded cable shield 702, and the stranded cable shield 702 is inserted into the transverse through-hole and pressed by the screw 600.

In assembling the plug connector, the shielding conductive member and the cable 700 are first installed in the plug sleeve 400, and then the plug sleeve 400 is connected to the plug front end conductive housing 300, since the shielding passage of the entire connector assembly is the shielding layer 701 → the shielding block 502 → the shielding cylinder 501 → the plug front end conductive housing 300 → the receptacle conductive housing 200 → the cabinet panel 100, the shielding cylinder 501 needs to be brought into conductive contact with the plug front end conductive housing 300 in the process of connecting the plug sleeve 400 to the plug front end conductive housing 300.

Referring to fig. 1 and 3, the rear portion of the plug sleeve 400 is provided with a butting structure 401, the butting structure 401 has a butting end surface 4011 facing forward, the shielding block 502 has a shielding block end surface 5021 facing rearward, and a space is provided between the butting end surface 4011 and the shielding block end surface 5021 before the plug sleeve 400 is connected with the plug front conductive housing 300, as shown in fig. 3 a. With the plug sleeve 400 screwed in, the abutting end surface 4011 contacts the shield block end surface 5021, as shown in fig. 3b, and thereafter the abutting end surface 4011 can push the shield block 502 and the shield barrel 501 to move forward.

As shown in fig. 1 and 2, the shielding cylinder 501 has a shielding cylinder end face 5011 facing forward, the plug front end conductive housing 300 has a conductive housing end face 301 facing rearward, the plug front end conductive housing 300 further has a positioning piece 302 extending rearward, and the shielding cylinder 501 is provided with a positioning groove 5012 having a forward opening. Shield can end face 5011 is spaced from conductive housing end face 301 before abutting end face 4011 pushes shield can 501 to move, as shown in fig. 2 a. As it is pushed against end surface 4011, shield barrel end surface 5011 eventually comes into contact with conductive housing end surface 301 as shown in fig. 2b, while positioning piece 302 is inserted into positioning slot 5012. At this time, the entire shielding conductive member comes into close contact with the plug front end conductive housing 300.

It can be seen that, in the prior art, by providing a tightening structure in the plug sleeve 400, during the process of installing the plug sleeve 400, the shielding conductive component is pushed by the tightening structure to move, so as to achieve conductive contact with the conductive shell 300 at the front end of the plug.

Therefore, in the case of the conventional plug connector, a pressing structure must be provided in the plug sleeve, which makes the structure of the plug sleeve complicated. In addition, because the plug sleeve is in threaded connection with the front end conductive shell of the plug, the screwing degree of the plug sleeve must be well controlled during installation, once the screwing degree is not enough, the shielding conductive part cannot be ensured to be in close contact with the front end conductive shell of the plug, and then the grounding or shielding effect of a link is influenced, so that the existing plug sleeve is difficult to control during installation, and the installation requirement is high.

Disclosure of Invention

The invention aims to provide a plug connector, which aims to solve the problems that the plug sleeve structure is complex due to the fact that a jacking structure needs to be arranged in the plug sleeve in the prior art, and the installation requirement of the plug sleeve is high and the plug sleeve is difficult to control due to the fact that a shielding conductive part is tightly contacted with a conductive shell at the front end of a plug by utilizing the screwing degree of the plug sleeve in the prior art. The invention further aims to provide a connector assembly, so as to solve the problems that the plug sleeve structure is complex due to the fact that a jacking structure needs to be arranged in the plug sleeve in the prior art, and the plug sleeve is high in installation requirement and difficult to control due to the fact that the shielding conductive part is tightly contacted with the conductive shell at the front end of the plug by utilizing the screwing degree of the plug sleeve in the prior art.

In order to achieve the purpose, the plug connector adopts the following technical scheme:

a plug connector, comprising:

an inner conductive shell;

the tail sleeve is connected to the rear end of the inner conductive shell;

the power supply conducting part comprises a plug contact element, the front end of the plug contact element extends out of the first insulator, a second insulator and an elastic washer are arranged outside the plug contact element, the elastic washer is positioned on the rear side of the second insulator and is in blocking fit with the front end face of the first insulator, and an annular flange is arranged on the outer surface of the first insulator;

the shielding conductive part is arranged in the tail sleeve, the rear end of the shielding conductive part is provided with a fixing structure for fixing a cable shielding layer, and the front end of the shielding conductive part is provided with a conductive sheet in stop fit with the annular flange on the first insulator;

the clamp spring is arranged outside the first insulator and is positioned on the rear side of the conducting plate;

the inner wall of the inner-layer conductive shell is provided with a stopping step, and the stopping step is in stopping fit with the second insulator in the front and rear directions so as to prevent the second insulator from moving forwards;

the inner wall of the inner conductive shell is also provided with an annular clamping groove for clamping the clamp spring, the annular clamping groove is located on the rear side of the stopping step, the distance between the annular clamping groove and the stopping step meets the requirement that the clamp spring is clamped into the annular clamping groove, the elastic washer is compressed and exerts backward acting force on the front end face of the first insulator, so that the annular flange on the first insulator abuts against the conductive plate on the end face of the clamp spring, the clamp spring is in close contact with the conductive plate, and the cable shielding layer is communicated with the inner conductive shell through the shielding conductive part and the clamp spring.

The beneficial effects of the above technical scheme are that: the power supply conductive part is arranged in the first insulator, the plug contact piece at the front end penetrates out of the first insulator, the second insulator and the elastic washer are arranged outside the plug contact piece, and when the power supply conductive part is assembled in the inner-layer conductive shell, the second insulator is in blocking fit with the blocking step on the inner wall of the inner-layer conductive shell, so that the second insulator is prevented from moving forwards, and the effect of limiting the second insulator is equivalent to the effect of limiting the second insulator. The first insulator is provided with an annular flange, and a conducting plate at the front end of the shielding conducting part is in stop fit with the annular flange, namely the conducting plate is limited.

The plug connector further comprises a clamp spring, the clamp spring is located on the rear side of the conducting plate, an annular clamping groove for the clamp spring to be clamped is formed in the inner wall of the inner-layer conducting shell, and the distance between the annular clamping groove and the stopping step meets the requirement that after the clamp spring is clamped into the annular clamping groove, the elastic washer is compressed and exerts backward acting force on the front end face of the first insulator, so that the annular flange on the first insulator abuts against the conducting plate on the end face of the clamp spring, and the clamp spring is in tight contact with the conducting plate. The clamp spring is clamped in the annular clamp groove and is in close contact with the inner conductive shell, so that the cable shielding layer is communicated with the inner conductive shell through the shielding conductive part and the clamp spring, and the shielding channel of the plug connector is the cable shielding layer → the fixed structure on the shielding conductive part → the conductive plate on the shielding conductive part → the clamp spring → the inner conductive shell.

Therefore, the plug connector provided by the invention has the advantages that the second insulator is in stop fit with the inner-layer conductive shell, the snap spring is clamped on the inner-layer conductive shell, the elastic gasket is compressed, the conductive sheet is tightly abutted against the snap spring by the reaction force of the elastic gasket on the first insulator, and the formation of the shielding channel is realized.

Therefore, the tail sleeve does not need to be provided with a jacking structure, the structure of the tail sleeve can be simplified, meanwhile, the tail sleeve is not used for jacking the shielding conductive part, but the clamp spring, the annular clamping groove, the second insulator and the stopping step are used, when the tail sleeve is installed, the clamp spring is only clamped into the annular clamping groove by using a tool, the installation is convenient, the close contact can be ensured, and the grounding or shielding effect of a link is ensured.

Further, in order to guarantee the contact area and facilitate installation, the conducting strip is an arc conducting strip which is C-shaped.

Furthermore, in order to make the structure compact, the axial width of the annular flange is not uniform in the circumferential direction, so that the rear end face of the annular flange is in a step structure, the rear end face of the annular flange comprises a first stop face close to the front and a second stop face close to the rear, the front end face of the arc-shaped conducting strip is in stop fit with the first stop face, and the arc-shaped conducting strip is clamped between the first stop face and the clamp spring.

Furthermore, in order to ensure that the contact area and the clamp spring are uniformly stressed, the circumferential length of the clamp spring is greater than that of the arc-shaped conducting plate, and the front end face of the clamp spring is matched with the second stop face and the rear end face of the arc-shaped conducting plate in a stop manner.

Further, in order to increase the contact area, the outer diameter of the arc-shaped conducting strip is equal to the outer diameter of the annular flange.

Further, in order to increase the contact area and facilitate the installation of the arc-shaped conducting strips, the circumferential length of the arc-shaped conducting strips exceeds a semi-circumference, parallel planes are processed on the inner walls at the two ends of the arc-shaped conducting strips respectively, and the distance between the two parallel planes is larger than the outer diameter of the first insulator, so that the arc-shaped conducting strips can be directly connected to the outside of the first insulator along the vertical direction.

Furthermore, for the convenience of fixing the cable shielding layer, the fixing structure comprises a wire pressing block and a wire clamp, one end of the wire clamp is hinged to the wire pressing block, the other end of the wire clamp is fixedly connected with the wire pressing block through a fastening screw, and an installation space for allowing a cable to pass through and clamp the cable shielding layer is formed between the wire pressing block and the wire clamp.

Furthermore, in order to facilitate the processing, manufacturing, mounting and fixing of the shielding conductive component, the shielding conductive component comprises a middle shielding plate, the conductive plate is arranged at the front end of the middle shielding plate, the fixing structure is arranged at the rear end of the middle shielding plate, the left side and the rear side of the middle shielding plate are respectively provided with a clamping hook and an elastic locking plate, the elastic locking plate is positioned at the front side of the clamping hook, a sliding groove for the clamping hook to slide back and forth is formed in the first insulator, a clamping block which is in blocking fit with the clamping hook in the up-down direction after the clamping hook slides in place is arranged on the groove wall of the sliding groove, a locking block is further arranged on the groove wall of the sliding groove and positioned at the front side of the clamping block, the locking block is used for blocking fit with the elastic locking plate in the front-back direction after the elastic locking plate moves forward in place.

Furthermore, in order to facilitate manufacturing and installation of the shielding conductive part, the middle shielding piece is of a straight sheet structure, a fitting plane which is fitted with the middle shielding piece is arranged on the first insulator, a boss is arranged on the fitting plane in a protruding mode, and a avoiding hole which is used for avoiding the boss is formed in the middle shielding piece.

In order to achieve the purpose, the connector assembly adopts the following technical scheme:

a connector assembly comprising a receptacle connector and a plug connector, the plug connector comprising:

an inner conductive shell;

the tail sleeve is connected to the rear end of the inner conductive shell;

Drawings

FIG. 1 is a diagram of a prior art connection configuration of a connector assembly;

fig. 2 is a diagram of a state of the shielding member and the front conductive housing of the plug in fig. 1 (in which fig. 2(a) is in an un-tightened state, and fig. 2(b) is in a tightened state);

fig. 3 is a diagram showing a state where the shielding member is fitted to the plug sleeve in fig. 1 (wherein fig. 3(a) is an un-tightened state, and fig. 3(b) is a tightened state);

in FIGS. 1 to 3: 100-cabinet panel of chassis; 200-a socket conductive housing; 300-plug front conductive housing; 301-conductive housing end face; 302-spacer; 400-a plug sleeve; 401-a jacking structure; 4011-abutting the end face; 501-a shielding cylinder; 5011-shielding the end face of the cylinder; 5012-locating grooves; 502-a mask block; 5021-end face of a shielding block; 600-screws; 700-a cable; 701-a shielding layer; 702-stranded cable shielding;

FIG. 4 is a partial cut-away view of the plug connector of the present invention;

FIG. 5 is an exploded view of the plug connector of the present invention;

FIG. 6 is a view of the assembly process of a portion of the components of the plug connector of the present invention;

FIG. 7 is an enlarged view at C of FIG. 6;

FIG. 8 is an enlarged view taken at D in FIG. 6;

FIG. 9 is an enlarged view at E in FIG. 6;

FIG. 10 is a structural view of the shielding conductive member of FIGS. 5 and 6;

fig. 11 is a view showing an assembling process of the shielding conductive member and the second insulator in fig. 5 and 6;

FIG. 12 is a diagram of the connection configuration of the connector assembly and the panel of the enclosure cabinet of the present invention;

in FIGS. 4 to 12: 1-an outer shell; 2-inner conductive shell; 21-a ring-shaped card slot; 22-a stop step; 3-a second insulator; 4-a resilient washer; 5-a first insulator; 51-an annular flange; 511-a first stop face; 512-a second stop surface; 52-boss; 53-locking groove; 54-a chute; 55-locking block; 56-a fixture block; 57-fitting plane; 6-clamp spring; 7-a shielding conductive member; 70-intermediate shielding sheet; 71-an arc-shaped conducting strip; 711-flanging; 72-wire clamp; 73-line pressing block; 74-fastening screws; 75-mounting screws; 76-hook; 77-elastic locking piece; 78-avoidance holes; 8-tail sleeve; 9-power supply conductive member; 91-a plug contact; 92-tightening the screw; 10-a rubber ring; 1000-cable; 1001-cable shield; 2000-socket connector; 2001-socket conductive housing; 2002-socket shield conductive spring; 3000-cabinet panel of the chassis.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

One embodiment of the connector assembly of the present invention is shown in fig. 12 and includes a receptacle connector 2000 and a plug connector, the receptacle connector 2000 includes a receptacle conductive housing 2001 fixed on a cabinet panel 3000 of a chassis, the receptacle conductive housing 2001 is provided with a receptacle shielding conductive spring 2002, and the receptacle shielding conductive spring 2002 is in contact with an inner hole wall of the cabinet panel 3000 of the chassis. It should be noted that the structure of the socket connector 2000 belongs to the prior art, and the invention is not described in detail.

The plug connector has a structure as shown in fig. 4 and 5, and includes an outer shell 1, an inner conductive shell 2, a second insulator 3, an elastic washer 4, a first insulator 5, a power conductive member 9, a snap spring 6, a shielding conductive member 7, a tail sleeve 8, and a rubber ring 10.

Wherein, the tail sleeve 8 is connected with the rear end of the inner conductive shell 2 in a threaded manner. The outer shell 1 is arranged outside the inner conductive shell 2, the two shells form a front end shell of the plug connector, the outer shell 1 can be a conductive shell or a non-conductive shell, the arrangement mode and the working principle of the outer shell belong to the prior art, and description is omitted here.

The first insulator 5 is arranged inside the inner conductive shell 2 and the tail sleeve 8, the power supply conductive part 9 is arranged in the first insulator 5, the power supply conductive part 9 realizes electric energy transmission, the power supply conductive part 9 comprises a plug contact 91 with the front end extending out of the first insulator 5, the second insulator 3 and the elastic washer 4 are arranged outside the plug contact 91, the second insulator 3 and the elastic washer 4 are respectively provided with a through hole for the plug contact 91 to pass through, and the elastic washer 4 is positioned on the rear side of the second insulator 3 and is in blocking fit with the front end face of the first insulator 5. The first insulator 5 is of a cylindrical structure as a whole, and an annular flange 51 is provided on the outer surface of the cylindrical body.

The shielding conductive member 7 is located inside the tail sleeve 8 and mounted on the first insulator 5, the rear end of the shielding conductive member 7 is provided with a fixing structure for fixing the cable shielding layer 1001, and the front end of the shielding conductive member 7 is provided with a conductive sheet in blocking fit with the annular flange 51 on the first insulator 5.

Specifically, as shown in fig. 10, the shielding conductive member 7 includes an intermediate shielding plate 70, the intermediate shielding plate 70 is a flat plate-shaped structure, the conductive plates are arc-shaped conductive plates 71 integrally connected to a front end of the intermediate shielding plate 70, and the arc-shaped conductive plates 71 are perpendicular to the intermediate shielding plate 70. The arc-shaped conducting plate 71 is in a C shape and comprises a flange 711 integrally connected with the middle shielding plate 70, the flange 711 is in a minor arc shape, and the outer diameter of the whole arc-shaped conducting plate 71 is equal to the outer diameter of the annular flange 51.

As shown in fig. 10 and 4, the fixing structure includes a pressing block 73 and a clip 72, the pressing block 73 is fixed at the rear end of the middle shielding plate 70 by a mounting screw 75, one end of the clip 72 is hinged to the pressing block 73, the other end is fixedly connected to the pressing block 73 by a fastening screw 74, and a mounting space for the cable 1000 to pass through and clamp the cable shielding layer 1001 is formed between the pressing block 73 and the clip 72.

As shown in fig. 10 and 11, the middle shielding plate 70 is provided with two hooks 76 and two elastic locking plates 77 at the left and rear sides, respectively, and the elastic locking plate 77 is located at the front side of the two hooks 76. The bottom of the hook 76 extends inward, and the rear end of the elastic locking piece 77 extends inward. The first insulator 5 is provided with a bonding plane 57 bonded with the middle shielding sheet 70, the bonding plane 57 is convexly provided with a boss 52, and the middle shielding sheet 70 is provided with an avoiding hole 78 for avoiding the boss 52. The left side and the right side of the joint plane 57 of the first insulator 5 are respectively provided with a sliding groove 54, the sliding grooves 54 are right-angle grooves for the hooks 76 to slide back and forth therein, the groove wall of the sliding groove 54 is provided with two fixture blocks 56 which are matched with the hooks 76 in a blocking manner in the up-down direction after the hooks 76 slide in place, and the number of the fixture blocks 56 on one side is also two. The groove wall of the sliding groove 54 is further provided with a locking block 55, the locking block 55 is located at the front side of the clamping block 56, the locking block 55 is used for being matched with the elastic locking plate 77 in a blocking manner in the front-back direction after the elastic locking plate 77 moves forward to the right position, and a locking groove 53 for the elastic locking plate 77 to be embedded into is formed at the front side of the locking block 55.

In addition, the circumferential length of the arc-shaped conductive sheet 71 exceeds a half circumference, parallel planes are respectively processed on the inner walls of the two ends of the arc-shaped conductive sheet 71, and the distance between the two parallel planes is larger than the outer diameter of the cylinder of the first insulator 5, so that the arc-shaped conductive sheet 71 can be directly attached to the outside of the cylinder of the first insulator 5 along the up-down direction.

As shown in fig. 11(a), the whole shielding conductive member 7 is placed above the first insulator 5, and then the shielding conductive member 7 is mounted on the first insulator 5 from the top down, as shown in fig. 11(b), at this time, the hooks 76 are located in the slide grooves 54 and offset from the latch blocks 56 in the front-rear direction, the elastic locking pieces 77 are located outside the latch blocks 55, the bosses 52 pass through the avoiding holes 78, and the intermediate shielding pieces 70 are attached to the attaching plane 57. Then, the shielding conductive member 7 is pushed forward, as shown in fig. 11(c), so that the hook 76 moves below the latch 56, and the latch 56 and the hook 76 are in blocking engagement in the up-down direction, so that the shielding conductive member 7 can be prevented from being pulled out upward; meanwhile, the elastic locking piece 77 moves into the locking groove 53 beyond the locking piece 55, and the locking piece 55 and the elastic locking piece 77 are in blocking fit in the front-back direction, so that the shielding conductive part 7 can be prevented from being pulled out backwards; at the same time, the annular flange 51 contacts and stops the arc-shaped conductive piece 71 to limit the position of the shielding conductive member 7. To this end, the assembly of the shielding conductive member 7 and the first insulator 5 is achieved.

As shown in fig. 6(a), the power conducting part 9 includes a tightening screw 92 screwed on the power conducting part 9, and the tightening screw 92 is used for tightening a cable conductor (not shown) of the cable 1000 after the cable conductor penetrates into the power conducting part 9, so as to fix the cable conductor and conduct with the power conducting part 9.

When the power conducting member 9 is mounted in the first insulator 5, the holding screw 92 needs to be screwed into the power conducting member 9 first to avoid interference of the screw and make the mounting impossible. The first insulator 5 is provided with an exposure hole (not shown) corresponding to the tightening screw 92 so that the tightening screw 92 can be screwed by a tool inserted through the exposure hole. After the power conducting member 9 is mounted in the first insulator 5, the plug contact 91 at the front end extends out of the first insulator 5, and the elastic washer 4 and the second insulator 3 are sequentially fitted around the outside of the plug contact 91 as shown in fig. 6(b), where the elastic washer 4 is not squeezed. Meanwhile, the clamp spring 6 is sleeved outside the first insulator 5, so that the clamp spring 6 is located on the rear side of the arc-shaped conducting plate 71.

Then, the whole body composed of the first insulator 5, the shielding conductive member 7, the power supply conductive member 9, the elastic washer 4, the second insulator 3 and the snap spring 6 is connected to the inner conductive shell 2, as shown in fig. 6(c), the whole body is inserted into the inner conductive shell 2 from the rear to the front, and as shown in fig. 9, a stopping step 22 is provided on the inner wall of the inner conductive shell 2, and the stopping step 22 and the second insulator 3 are in stopping fit in the front-rear direction to prevent the second insulator 3 from moving forward, which is equivalent to limiting the second insulator 3.

Then, the whole body is continuously pushed forward, so that the elastic washer 4 is compressed, as shown in fig. 8, the inner wall of the inner conductive shell 2 is further provided with an annular clamping groove 21 for the snap spring 6 to be clamped in, the annular clamping groove 21 is located on the rear side of the stopping step 22, so that the snap spring 6 can be operated by using a special tool to be clamped in the annular clamping groove 21, the distance between the annular clamping groove 21 and the stopping step 22 satisfies that after the snap spring 6 is clamped in the annular clamping groove 21, the compressed elastic washer 4 exerts backward acting force on the front end face of the first insulator 5, so that the annular flange 51 on the first insulator 5 abuts against the arc-shaped conductive plate 71 on the end face of the snap spring 6, and the snap spring 6 is tightly contacted with the arc-shaped conductive plate 71. At this time, the snap spring 6 and the annular clamping groove 21 are in blocking fit in the front-rear direction and are in close contact with the inner conductive shell 2, so that the whole body can be prevented from moving backwards, and the whole body is clamped on the inner conductive shell 2.

As shown in fig. 7 and fig. 11(a), the axial width of the annular flange 51 is not uniform in the circumferential direction, so that the rear end surface of the annular flange 51 has a step structure, the rear end surface of the annular flange 51 includes a first stop surface 511 located forward and a second stop surface 512 located rearward, the front end surface of the arc-shaped conductive plate 71 is in stop fit with the first stop surface 511, and the arc-shaped conductive plate 71 is sandwiched between the first stop surface 511 and the snap spring 6. Moreover, the circumferential length of the snap spring 6 is greater than the circumferential length of the arc-shaped conductive sheet 71, and the front end surface of the snap spring 6 is in blocking fit with the second blocking surface 512 and the rear end surface of the arc-shaped conductive sheet 71.

The integral components shown in fig. 6(c) constitute the plug connector shown in fig. 4 after the cable 1000, the tail sleeve 8 and the outer shell 1 are connected.

In the plug connector of the present invention, the cable shielding layer 1001 is conducted with the inner conductive shell 2 through the shielding conductive part 7 and the snap spring 6, and also the shielding channel of the plug connector is the cable shielding layer 1001 → the wire clamp 72 and the wire pressing block 73 on the shielding conductive part 7 → the arc conductive sheet 71 on the shielding conductive part 7 → the snap spring 6 → the inner conductive shell 2, and further, as shown in fig. 12, when the plug connector is in plugging fit with the socket connector 2000, the inner conductive shell 2 can be contacted and conducted with the socket conductive shell 2001, and further, the conduction with the chassis cabinet panel 3000 is realized through the socket shielding conductive spring 2002.

Therefore, the plug connector of the present invention utilizes the second insulator 3 to stop and cooperate with the inner conductive shell 2, and then utilizes the snap spring 6 to clip on the inner conductive shell 2, so as to compress the elastic washer 4, and utilizes the reaction force of the elastic washer 4 on the first insulator 5 to tightly prop the arc-shaped conductive sheet 71 against the snap spring 6, so as to form the shielding channel.

Therefore, the tail sleeve 8 is not required to be provided with a jacking structure, the structure of the tail sleeve 8 can be simplified, meanwhile, the tail sleeve 8 is not used for jacking the shielding conductive part, but the snap spring, the annular clamping groove, the second insulator and the stopping step are used, when the tail sleeve 8 is installed, the snap spring is only required to be clamped into the annular clamping groove by using a tool, the installation is convenient, the close contact can be ensured, and the grounding or shielding effect of a link is ensured.

In other embodiments of the connector assembly, the middle shielding plate may also be arc-shaped, and at this time, the first insulator does not need to be provided with a bonding plane, and the middle shielding plate does not need to be provided with an avoiding hole.

In other embodiments of the connector assembly, the shielding conductive member may be cylindrical and fixed to the outside of the first insulator.

In other embodiments of the connector assembly, the securing structure is not a wire clamp and a wire clamp block, but a securing block and a screw mounted on the securing block, the securing block having a transverse bore, where the cable shield is twisted into a strand to form a stranded cable shield, the stranded cable shield penetrating the transverse bore and being compressed by the screw.

In other embodiments of the connector assembly, the arcuate conductive strips have a circumferential length less than one-half of a circumference, which eliminates the need for machining flats in the ends.

In other embodiments of the connector assembly, the outer diameter of the arcuate conductive tabs may be smaller than the outer diameter of the annular flange.

In other embodiments of the connector assembly, the circumferential length of the circlip may be equal to the circumferential length of the arc-shaped conductive sheet.

In other embodiments of the connector assembly, no matter whether the circumferential length of the snap spring is greater than the circumferential length of the arc-shaped conductive plate, the front end surface of the snap spring can be simultaneously in stop fit with the second stop surface and the rear end surface of the arc-shaped conductive plate in a manner of staggering the snap spring and the arc-shaped conductive plate in the circumferential direction.

In other embodiments of the connector assembly, the front end surface of the snap spring may be in stop-fit with only the rear end surface of the arc-shaped conductive plate, i.e., the front end surface of the snap spring is not in contact with the second stop surface.

In other embodiments of the connector assembly, the axial width of the annular flange may be uniform in the circumferential direction, i.e., the rear end surface of the annular flange is a plane, and the front end surface of the arc-shaped conductive piece is directly in stop-fit with the rear end surface of the annular flange.

In other embodiments of the connector assembly, the arcuate conductive strips may not be C-shaped, but rather may be shorter, less arcuate.

In other embodiments of the connector assembly, the conductive strips may not be arcuate, but rather rectangular or oval.

The plug connector of the invention comprises the following embodiments: the specific structure of the plug connector is the same as that of the plug connector in the above-described connector assembly embodiment, and will not be repeated here.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. A plug connector, comprising:

an inner conductive shell;

the tail sleeve is connected to the rear end of the inner conductive shell;

2. The plug connector of claim 1, wherein the conductive tabs are arcuate conductive tabs, the arcuate conductive tabs being C-shaped.

3. The plug connector of claim 2, wherein the annular flange has an axial width that is circumferentially unequal such that a rear end surface of the annular flange has a stepped configuration, the rear end surface of the annular flange including a first stop surface located forward and a second stop surface located rearward, a front end surface of the arc-shaped conductive plate being in stop-fit with the first stop surface, the arc-shaped conductive plate being sandwiched between the first stop surface and the snap spring.

4. The plug connector of claim 3, wherein the circumferential length of the circlip is greater than the circumferential length of the arc-shaped conductive plate, and the front end surface of the circlip simultaneously stops and mates with the second stop surface and the rear end surface of the arc-shaped conductive plate.

5. The plug connector of any one of claims 2-4, wherein the outer diameter of the arcuate conductive tab is equal to the outer diameter of the annular flange.

6. The plug connector according to any one of claims 2 to 4, wherein the arc-shaped conductive sheet has a circumferential length exceeding a half circumference, parallel planes are respectively formed on inner walls of both ends of the arc-shaped conductive sheet, and a distance between the two parallel planes is larger than an outer diameter of the first insulator, so that the arc-shaped conductive sheet can be directly attached to an outside of the first insulator in an up-down direction.

7. The plug connector according to any one of claims 1 to 4, wherein the fixing structure includes a cable pressing block and a cable clamp, one end of the cable clamp is hinged to the cable pressing block, the other end of the cable clamp is fixedly connected to the cable pressing block through a fastening screw, and an installation space for a cable to pass through and clamp the cable shielding layer is formed between the cable pressing block and the cable clamp.

8. The plug connector according to any one of claims 1 to 4, wherein the shielding conductive member includes a middle shielding plate, the conductive plate is disposed at a front end of the middle shielding plate, the fixing structure is disposed at a rear end of the middle shielding plate, the middle shielding plate is provided with a hook and an elastic locking plate at left and rear sides thereof, the elastic locking plate is disposed at a front side of the hook, the first insulator is provided with a sliding slot for the hook to slide back and forth, a locking block is disposed on a wall of the sliding slot and adapted to be locked with the hook in the up-down direction after the hook slides in place, a locking block is further disposed on a wall of the sliding slot and disposed at a front side of the locking block, the locking block is adapted to be locked with the elastic locking plate in the up-down direction after the elastic locking plate moves forward in place, and a locking groove for the elastic locking plate to be inserted into is formed at the front.

9. The plug connector according to claim 8, wherein the middle shielding plate is a straight plate structure, the first insulator is provided with a bonding plane bonded with the middle shielding plate, the bonding plane is convexly provided with a boss, and the middle shielding plate is provided with an avoiding hole for avoiding the boss.

10. A connector assembly comprising a receptacle connector and a plug connector according to any one of claims 1 to 9.