Shielding assembly and female end connector

Abstract

The utility model discloses a shielding assembly and a female end connector, comprising a female end base, the female end base is provided with an installation cavity, the installation cavity is internally provided with a limiting boss and a retaining clamping groove, the shielding assembly is installed in the installation cavity, a limiting protrusion of the shielding assembly abuts against the limiting boss, and an elastic reverse buckle is clamped in the retaining clamping groove. The right end face of the elastic inverted buckle abuts against the right end face of the retaining clamping groove. The female end base is further provided with a locking block for preventing the shielding assembly from axially retreating. The beneficial effects of the utility model are that the left end of the inner shielding member is provided with the elliptical cavity, and the right end of the outer shielding member is also provided with the elliptical cavity, so that the sleeving area of the inner shielding member and the outer shielding member is in elliptical sleeving, the contact area of the inner shielding member and the outer shielding member is reduced, the impedance of the shielding assembly is more excellent, and the insertion loss, crosstalk and the like are more excellent; the shielding assembly is locked through the secondary locking structure, so that the axial position of the shielding assembly is stable, and the reliability of the female end connector is improved.

Description

Technical Field

[0001] The utility model relates to a connector, in particular to a shielding component and a female end connector. Background Art

[0002] Existing female connectors have the following disadvantages:

[0003] 1. Poor high-speed performance. After long-term research, the inventors found that one of the reasons for the poor high-speed performance is that the inner and outer shielding parts of the existing female connectors are both in a rectangular cavity, which is difficult to manufacture. After the inner and outer shielding parts are assembled, the contact area is large, which leads to poor high-speed performance.

[0004] 2. The existing female connector has insufficient pre-locking effect of the primary lock, resulting in insufficient pre-locking retention force;

[0005] 3. There is no corresponding observation window for the outer shield, so the shape and position of the socket mouth in the assembly state cannot be observed; and there is no direction restriction during the insulator installation process (not foolproof), so the shape and position of the socket mouth in the assembly state cannot be observed;

[0006] 4. During the installation of the socket, the base platform may scratch the socket mouth, causing the mouth shape to be abnormal. Utility Model Content

[0007] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a shielding component and a female connector.

[0008] The purpose of the utility model is achieved through the following technical solutions: a shielding component, comprising an outer shielding member, an inner shielding member, an insulator and a contact component, the contact component is installed in the insulator, the right end of the insulator is installed in the inner shielding member, the left end of the insulator is installed in the outer shielding member, and the left end of the inner shielding member is inserted into the inner cavity of the right end of the outer shielding member, the left end of the inner shielding member is an elliptical cavity, the right end of the outer shielding member is an elliptical cavity matching the left end of the inner shielding member, the left end of the inner shielding member is sleeved in the inner cavity of the right end of the outer shielding member, the inner shielding member has a limiting recess, the limiting recess is located on the right side of the outer shielding member, a limiting protrusion is arranged on the top of the right end of the outer shielding member, an opening is opened at the bottom of the right end of the outer shielding member, an elastic undercut protruding outward is arranged on the left end surface of the opening, and on the projection surface of the bottom of the outer shielding member, the elastic undercut is located on the left side of the limiting protrusion.

[0009] Optionally, strip holes extending left and right are provided on the upper, lower, left and right side walls of the left end of the outer shielding component, and a spring sheet extending leftward is provided on the right side wall of the strip hole. When not affected by external force, the claw of the spring sheet protrudes out of the corresponding strip hole, and an annular groove corresponding to the claw of the spring sheet is provided on the left end of the insulator.

[0010] Optionally, the upper side wall and the lower side wall of the left end of the outer shielding member are each provided with two spaced apart strip holes, the strip holes extend to the left, and the space between the left end surface of the strip holes and the claw portion of the corresponding spring sheet forms an observation window.

[0011] Optionally, the left end portion of the outer shielding component is also provided with an anti-foolproof protrusion protruding inward, and the left end portion of the shielding component is opened and closed with an anti-foolproof groove corresponding to the anti-foolproof protrusion, and the anti-foolproof protrusion is stuck in the anti-foolproof groove. A positioning notch is provided on the left end face of the upper surface of the inner shielding component, and a positioning protrusion corresponding to the positioning notch is provided on the shielding component, and the positioning protrusion is against the positioning notch.

[0012] Optionally, the middle part of the insulator is provided with pairs of T-shaped through holes that pass through from top to bottom, the positioning protrusion is located between the two T-shaped through holes, the large end of the T-shaped through hole is located at the right end, and a guide slope is provided at the junction of the large end and the small end of the T-shaped through hole, and the contact assembly is provided with an elastic stop buckle that protrudes outward, and the elastic stop buckle is located inside the large end of the T-shaped through hole.

[0013] A female connector includes a female base, an installation cavity is formed on the female base, a limiting boss and a stop groove are arranged in the installation cavity, and also includes the above-mentioned shielding component, the shielding component is installed in the installation cavity, and the limiting boss of the shielding component abuts against the limiting boss, the elastic undercut is stuck in the stop groove, and the right end face of the elastic undercut abuts against the right end face of the stop groove, and a locking block is also installed on the female base to prevent the shielding component from axial withdrawal.

[0014] Optionally, there are four installation cavities, and the four installation cavities are distributed in a matrix, a recessed groove is provided at the bottom of the female end base, a limiting hole is provided in the middle of the bottom of the recessed groove, the limiting hole extends upward and exposes the inner side of the limiting recess in the installation cavity, and accommodating grooves are provided on both sides of the left end of the recessed groove, and a locking hole connected to the accommodating groove is provided on the outer wall of the female end base. The middle part of the locking block has a positioning block protruding upward, and both sides of the left end of the locking block also have elastic locking arms protruding upward, the locking block is installed in the recessed groove, and the positioning block is inserted into the limiting hole, and the left end face of the positioning block abuts against the left end face of the limiting recess, the elastic locking arm is inserted into the accommodating groove, and the locking block on the outside of the elastic locking arm is stuck in the locking hole.

[0015] Optionally, side holes corresponding to the shielding assembly are further provided on the two outer side walls of the female end base, and an elastic stop block is provided on the right end surface of the side hole, and the elastic stop block abuts against the left end surface of the limiting recess.

[0016] Optionally, an inwardly concave claw portion is provided at the end of the elastic stop block, and the inner side of the claw portion is a wedge-shaped surface.

[0017] Optionally, a strip groove is formed at the bottom of the sink groove to expose the bottom of the limiting recess of the bottom shielding component, and the locking block has a limiting block that is stuck in the strip groove, and the limiting block is located in the strip groove.

[0018] The utility model has the following advantages:

[0019] 1. In the female connector of the present invention, the left end of the inner shielding member is an elliptical cavity, and the right end of the outer shielding member is also an elliptical cavity, so that the fitting area of ​​the inner and outer shielding members is an elliptical fitting, thereby reducing the contact area of ​​the inner and outer shielding members, thereby making the impedance of the shielding assembly more superior, and thus the insertion loss, crosstalk, etc. are also more superior;

[0020] 2. The shielding assembly of the utility model adds an elastic undercut at the bottom of the outer shielding member to increase the locking effect of the primary lock;

[0021] 3. In the female connector of the present invention, the shielding assembly is locked by a secondary locking structure, thereby stabilizing the axial position of the shielding assembly, thereby increasing the reliability of the female connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the female connector;

[0023] Figure 2 It is a schematic diagram of the assembly of the female connector and the locking block;

[0024] Figure 3 It is a schematic diagram of the position of the upper limit boss and the anti-retraction groove of the female end base;

[0025] Figure 4 It is a schematic diagram of the position of the sink groove on the female end base;

[0026] Figure 5 is a schematic diagram of the structure of the shielding component;

[0027] Figure 6 is a cross-sectional schematic diagram of a shielding assembly;

[0028] Figure 7 Schematic diagram of the structure of the outer shield Figure 1 ;

[0029] Figure 8 Schematic diagram of the structure of the outer shield Figure 2 ;

[0030] Fig. 9 It is a schematic diagram of the structure of the insulator;

[0031] Fig.10 It is a schematic diagram of the installation of the insulator and the inner shielding member;

[0032] Fig.11 It is a structural schematic diagram of the locking block;

[0033] In the figure, 100-outer shielding part, 200-inner shielding part, 300-insulator, 400-contact assembly, 101-elastic undercut, 102-spring, 103-strip hole, 104-observation window, 105-anti-fool-proofing protrusion, 106-limiting protrusion, 201-limiting recess, 202-positioning notch, 301-anti-fool-proofing groove, 302-positioning protrusion, 303-annular groove, 304-T-shaped through hole, 305-guide slope, 10-female end base, 11-installation cavity, 12-limiting boss, 13-retraction slot, 14-locking hole, 15-side hole, 16-elastic retraction block, 17-strip groove, 18-sunk groove, 19-accommodating groove, 20-locking block, 21-elastic locking arm, 22-positioning block, 23-limiting block. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] like Figure 1 As shown, a female connector includes a female base 10 and a shielding component, such as Figure 3 As shown, the female end base 10 is provided with an installation cavity 11, and a limit boss 12 and a stop groove 13 are provided in the installation cavity 11. Figure 7 and Figure 8 As shown, the shielding assembly is installed in the installation cavity 11, and the limiting protrusion 106 of the shielding assembly abuts against the limiting boss 12, the elastic undercut 101 is stuck in the anti-retraction groove 13, and the right end surface of the elastic undercut 101 abuts against the right end surface of the anti-retraction groove 13, as shown in FIG. Figure 2 As shown, a locking block 20 for preventing the shielding assembly from axially withdrawing is also installed on the female end base 10. In this embodiment, the shielding assembly includes an outer shielding member 100, an inner shielding member 200, an insulator 300 and a contact assembly 400. The contact assembly 400 is installed in the insulator 300, the right end of the insulator 300 is installed in the inner shielding member 200, the left end of the insulator 300 is installed in the outer shielding member 100, and the left end of the inner shielding member 200 is plugged into the inner cavity of the right end of the outer shielding member 100, as shown in FIG. Figure 5 Shown and Figure 6As shown in FIG. 1 , the left end of the inner shielding member 200 is an elliptical cavity, and the right end of the outer shielding member 100 is an elliptical cavity matching the left end of the inner shielding member 200. The existing female end shielding member has a rectangular structure in the sleeve area of ​​the outer shielding member 100 and the inner shielding member 200. The characteristic impedance represents the transient impedance felt at any position when the signal is transmitted on a uniform transmission line, that is, the instantaneous ratio of the voltage to the current on the transmission line. It is related to the characteristics of the filling dielectric material and the lateral dimensions of the signal line (line width, line thickness, thickness of the dielectric material), but has nothing to do with the length. Therefore, when other conditions remain unchanged, In this case, the smaller the area, the smaller the capacitance, but the impedance rises and reaches the impedance value required by the system. The insertion loss and return loss indicators of the system are optimized, which is actually an impedance matching problem. Therefore, the smaller the impedance fluctuation, the better the transmission performance of the system (reflection, loss and other indicators). Under the same plug-in environment, the elliptical area is smaller than the rectangular area. Therefore, the fitting area of ​​the outer shielding component 100 and the inner shielding component 200 is set to an elliptical cavity. When the outer shielding component 100 and the inner shielding component 200 are installed, the impedance of the shielding component is better, and the insertion loss, crosstalk, etc. are also better.

[0041] In this embodiment, if Figure 7 and Figure 8 As shown, the upper, lower, left and right side walls of the left end of the outer shielding member 100 are all provided with strip holes 103 extending left and right, and the right side wall of the strip hole 103 is provided with a spring piece 102 extending leftward. When not affected by external force, the claw of the spring piece 102 protrudes from the corresponding strip hole 103, and the left end of the insulator 300 is provided with an annular groove 303 corresponding to the claw of the spring piece 102. In actual use, when the male base and the female base 10 are plugged in, the spring piece 102 will be compressed, thereby causing the spring piece 102 to generate an elastic restoring force, and the spring piece 102 is always in contact with the shielding member of the male base under the action of the elastic restoring force, thereby ensuring the shielding performance of the connector, and after the spring piece 102 is compressed, the claw of the spring piece 102 is located in the annular groove 303, thereby reserving space for the deformation of the spring piece 102.

[0042] In this embodiment, if Figure 7 and Figure 8 As shown, the upper side wall and the lower side wall of the left end portion of the outer shielding member 100 are each provided with two spaced apart strip holes 103, the strip holes 103 extend to the left side, and the space between the left end surface of the strip hole 103 and the claw portion of the corresponding spring piece 102 forms an observation window 104, through which the assembly status of the insulator 300 and the outer shielding member 100 can be checked, thereby facilitating the assembly of the insulator 300 and the outer shielding member 100.

[0043] In this embodiment, if Figure 7As shown, the left end portion of the outer shielding member 100 is also provided with an inwardly protruding anti-fool protrusion 105, and the left end portion of the shielding component is opened and closed with an anti-fool protrusion 105 corresponding to the anti-fool protrusion 105. The anti-fool protrusion 105 is stuck in the anti-fool protrusion 301. Through the anti-fool protrusion 105 and the anti-fool protrusion 301, the shielding component can be prevented from being installed incorrectly or offset, thereby ensuring the assembly reliability of the insulator 300 and the outer shielding member 100.

[0044] In this embodiment, if Fig.10 As shown, a positioning notch 202 is provided on the left end face of the upper surface of the inner shielding member 200, and a positioning protrusion 302 corresponding to the positioning notch 202 is provided on the shielding member, and the positioning protrusion 302 abuts against the positioning notch 202. The positioning performance of the inner shielding member 200 and the insulator 300 is ensured by the abutment between the positioning protrusion 302 and the positioning notch 202.

[0045] In this embodiment, if Fig. 9 As shown, a pair of T-shaped through holes 304 are provided in the middle of the insulator 300, which pass through the two T-shaped through holes 304, and a positioning protrusion 302 is located between the two T-shaped through holes 304. The large end of the T-shaped through hole 304 is located at the right end, and a guide slope 305 is provided at the junction of the large end and the small end of the T-shaped through hole 304. An elastic stop buckle convex outward is provided on the contact component 400. In this embodiment, a hole is provided on the contact component 400, and then the elastic stop buckle is installed on the wall of the hole. When the elastic stop buckle is pressed, the elastic stop buckle can be compressed in the hole, thereby facilitating the axial insertion of the contact component 400. When the contact component 400 is installed After that, the elastic stop buckle is located in the large end of the T-shaped through hole 304, and the contact component 400 can be well observed through the T-shaped through hole 304, which facilitates the installation of the contact component 400 and the insulator 300. During the installation process of the contact component 400 and the insulator 300, the front end of the contact component 400 is inserted from the socket of the insulator 300. When the contact component 400 contacts the guide bevel 305, the guide bevel 305 can guide the contact component 400 into the socket of the insulator 300, and the guide bevel 305 can also reduce the possibility of the contact component 400 scratching the socket mouth, thereby avoiding abnormalities of the socket mouth.

[0046] In this embodiment, if Figure 3As shown, there are four mounting cavities 11, and the four mounting cavities 11 are distributed in a matrix. When the shielding component is assembled, the shielding component is inserted from the left end of the mounting cavity 11. When the elastic undercut 101 contacts the hole wall of the mounting cavity 11, the elastic undercut 101 is pressed into the opening. When the elastic undercut 101 enters the anti-retraction groove 13, the elastic undercut 101 enters the anti-retraction groove 13 under the action of the elastic restoring force. At this time, the limiting protrusion 106 of the outer shielding component 100 abuts against the limiting boss 12, and the right end face of the elastic undercut 101 abuts against the right end face of the anti-retraction groove 13, thereby fixing the axial position of the outer shielding component 100, and the axial fixation of the inner shielding component 200 is achieved by the locking block 20. In this embodiment, as shown in FIG. Figure 4 As shown, a sink groove 18 is provided at the bottom of the female end base 10, a limiting hole is provided in the middle of the bottom of the sink groove 18, the limiting hole extends upward and exposes the inner side of the limiting recess 201 located in the installation cavity 11, and accommodating grooves 19 are provided on both sides of the left end of the sink groove 18, and a locking hole 14 connected to the accommodating groove 19 is provided on the outer wall of the female end base 10, as shown in FIG. Fig.11 As shown, the middle part of the locking block 20 has a positioning block 22 protruding upward, and the left ends of the locking block 20 also have elastic locking arms 21 protruding upward. The locking block 20 is installed in the sink groove 18, and the positioning block 22 is inserted into the limiting hole, and the left end face of the positioning block 22 abuts against the left end face of the limiting recess 201, the elastic locking arm 21 is inserted into the accommodating groove 19, and the locking block on the outer side of the elastic locking arm 21 is stuck in the locking hole 14. Therefore, when the locking block 20 is installed, the left end face of the positioning block 22 abuts against the left end face of the limiting recess 201, thereby making it impossible for the inner shielding member 200 to withdraw axially, thereby realizing the stopping of the axial position of the inner shielding member 200, and the elastic lock After the locking block on the arm 21 is stuck in the locking hole 14, the locking block 20 will not be easily separated from the female end base 10, thereby ensuring the reliability of the installation of the locking block 20, and then ensuring the reliability of the axial position of the inner shielding component 200. When disassembly is required, a special tool is used to withdraw the locking block from the locking hole 14, and then the locking block 20 is tilted up and the locking block 20 is taken out. To facilitate the lifting of the locking block 20, an inclined surface that is convenient for tool insertion can be provided on the left end face of the sink 18. For the outer shielding component 100, a special tool can also be used to disengage the elastic undercut 101 from the anti-retraction slot 13, thereby realizing the separation of the shielding assembly from the female end base 10.

[0047] In this embodiment, after the shielding assembly is inserted into the female end base 10, although the axial direction of the outer shielding member 100 is fixed, the axial position of the inner shielding member 200 can be axially retreated to ensure the reliability of the installation of the shielding assembly. Figure 1As shown, side holes 15 corresponding to the shielding components are also opened on the two outer side walls of the female end base 10, and an elastic stop block 16 is arranged on the right end face of the side hole 15, and the elastic stop block 16 abuts against the left end face of the limiting recess 201. During the insertion process of the shielding component, the elastic stop block 16 opens outward to ensure the insertion of the shielding component. When the shielding component is inserted into place, the elastic stop block 16 enters the limiting recess 201 under the action of the elastic restoring force, and the elastic stop block 16 abuts against the left end face of the limiting recess 201. At this time, the elastic stop block 16 has a primary locking function for the inner shielding component 200, which can ensure the initial fixation of the axial position of the inner shielding component 200, and when the locking block 20 is installed, the locking block 20 has a secondary locking function for the inner shielding component 200, thereby ensuring the reliability of the axial position of the inner shielding component 200.

[0048] In this embodiment, the end of the elastic stop block 16 is provided with an inwardly concave claw, the inner side of the claw is a wedge-shaped surface, and when the shielding component contacts the claw, the elastic stop block 16 is facilitated to open outward.

[0049] In this embodiment, if Figure 4 As shown, the bottom of the sink 18 is also provided with a strip groove 17 that exposes the bottom of the limiting recess 201 of the bottom shielding assembly. The locking block 20 has a limiting block 23 that is stuck in the strip groove 17, and the limiting block 23 is located in the strip groove 17. Through the strip groove 17, the position of the shielding assembly can be well observed, thereby facilitating the installation of the locking block 20.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A shielding assembly, characterized in that: The invention comprises an outer shielding member, an inner shielding member, an insulator and a contact assembly, wherein the contact assembly is installed in the insulator, the right end of the insulator is installed in the inner shielding member, the left end of the insulator is installed in the outer shielding member, and the left end of the inner shielding member is inserted into the inner cavity of the right end of the outer shielding member, the left end of the inner shielding member is an elliptical cavity, the right end of the outer shielding member is an elliptical cavity matching the left end of the inner shielding member, the left end of the inner shielding member is sleeved in the inner cavity of the right end of the outer shielding member, the inner shielding member is provided with a limiting recess, the limiting recess is located on the right side of the outer shielding member, a limiting protrusion is arranged on the top of the right end of the outer shielding member, an opening is arranged at the bottom of the right end of the outer shielding member, an elastic undercut protruding outward is arranged on the left end surface of the opening, and on the projection surface of the bottom of the outer shielding member, the elastic undercut is located on the left side of the limiting protrusion.

2. A shielding assembly according to claim 1, characterized in that: The upper, lower, left and right side walls of the left end of the outer shielding component are all provided with strip holes extending left and right, and a spring sheet extending leftward is arranged on the right side wall of the strip hole. When not affected by external force, the claw of the spring sheet protrudes corresponding to the strip hole, and the left end of the insulator is provided with an annular groove corresponding to the claw of the spring sheet.

3. A shielding assembly according to claim 2, characterized in that: The upper side wall and the lower side wall of the left end of the outer shielding member are both provided with two spaced apart strip holes, which extend to the left side, and the space between the left end surface of the strip hole and the claw portion corresponding to the spring sheet forms an observation window.

4. A shielding assembly according to claim 3, characterized in that: The left end portion of the outer shielding component is also provided with an anti-foolproof protrusion protruding inward, and the left end portion of the shielding component is opened and closed with an anti-foolproof groove corresponding to the anti-foolproof protrusion, and the anti-foolproof protrusion is stuck in the anti-foolproof groove. A positioning notch is provided on the left end face of the upper surface of the inner shielding component, and a positioning protrusion corresponding to the positioning notch is provided on the shielding component, and the positioning protrusion is abutted against the positioning notch.

5. A shielding assembly according to claim 4, characterized in that: The middle part of the insulator is provided with a pair of T-shaped through holes which pass through from top to bottom, the positioning protrusion is located between the two T-shaped through holes, the large end of the T-shaped through hole is located at the right end, and a guiding slope is provided at the junction of the large end and the small end of the T-shaped through hole, and the contact assembly is provided with an elastic stop buckle which protrudes outward, and the elastic stop buckle is located inside the large end of the T-shaped through hole.

6. A female connector, characterized in that: It includes a female end base, a mounting cavity is opened on the female end base, a limiting boss and a stop groove are arranged in the mounting cavity, and also includes the shielding assembly described in any one of claims 1 to 5, the shielding assembly is installed in the mounting cavity, and the limiting boss of the shielding assembly abuts against the limiting boss, the elastic undercut is clamped in the stop groove, and the right end face of the elastic undercut abuts against the right end face of the stop groove, and a locking block is also installed on the female end base to prevent the shielding assembly from axial withdrawal.

7. A female connector according to claim 6, characterized in that: There are four mounting cavities, and the four mounting cavities are distributed in a matrix. A sink is provided at the bottom of the female end base, and a limiting hole is provided in the middle of the bottom of the sink. The limiting hole extends upward and exposes the inner side of the limiting recess in the mounting cavity. Receiving grooves are provided on both sides of the left end of the sink, and a locking hole connected to the receiving groove is provided on the outer wall of the female end base. The middle part of the locking block has a positioning block protruding upward, and both sides of the left end of the locking block also have elastic locking arms protruding upward. The locking block is installed in the sink, and the positioning block is inserted into the limiting hole, and the left end face of the positioning block abuts against the left end face of the limiting recess, the elastic locking arm is inserted into the receiving groove, and the locking block on the outside of the elastic locking arm is stuck in the locking hole.

8. A female connector according to claim 7, characterized in that: Side holes corresponding to the shielding assembly are also provided on the two outer side walls of the female end base, and an elastic stop block is provided on the right end surface of the side hole, and the elastic stop block abuts against the left end surface of the limiting recess.

9. A female connector according to claim 8, characterized in that: The end of the elastic stop block is provided with an inwardly concave claw portion, and the inner side of the claw portion is a wedge-shaped surface.

10. A female connector according to claim 7, characterized in that: The bottom of the sink groove is also provided with a strip groove which exposes the bottom of the limiting recess of the bottom shielding component. The locking block is provided with a limiting block which is stuck in the strip groove, and the limiting block is located in the strip groove.

Images