Shielding structure and connecting assembly

Abstract

A shielding structure and a connecting assembly. The shielding structure comprises a housing and a shielding cover; the housing comprises a substrate and pins; the pins are internally provided with terminals; the shielding cover comprises a plate-like base and annular cover bodies; the base is attached to part of the end surface of the substrate, and through holes for the pins to pass through are formed in the base; and each cover body is sleeved on at least part of the corresponding pin, and one end portion of the cover body abuts against and is electrically connected to the base. The present invention also relates to a connecting assembly. The connecting assembly comprises a plug and a socket, and the shielding structure is provided in the socket. By means of the shielding structure and the connecting assembly, omni-directional shielding at the pins can be achieved, electromagnetic leakage is avoided, and a better shielding effect is achieved.

Description

Shielding structure and connecting assembly

[0001] Related applications

[0002] The present application claims priority to the Chinese patent application No. 202411114147.3, filed on August 14, 2024, and incorporates by reference the entire disclosure of the aforementioned patent application as part of the present application. TECHNICAL FIELD

[0003] The present application relates to the technical field of connectors, and more particularly, to a shielding structure and a connecting assembly. BACKGROUND

[0004] In a high-voltage connector, in order to prevent external interference and internal electromagnetic leakage, a shielding cover made of metal material needs to be provided for electromagnetic shielding. The shielding cover is formed into a cylindrical structure by stamping and bending a metal plate. An end of the cylindrical structure away from a plug is provided with a contact pin. When assembled, the shielding cover is sleeved outside the plug pin in the insertion direction of the plug. Then the contact pin penetrates through the shell of the socket and is in conductive contact with the mounting panel to achieve the shielding purpose.

[0005] However, the shielding cover of the above structure cannot achieve shielding on the plane around the root of the plug pin, and is not suitable for some occasions with high shielding requirements. SUMMARY

[0006] The present application provides a shielding structure and a connecting assembly to solve the problem that the shielding cover in the prior art cannot achieve shielding on the plane around the root of the plug pin.

[0007] The shielding structure provided by the present application includes a shell and a shielding cover arranged on the shell. The shell includes a base plate, a plug pin protruding from the end face of the base plate, and a terminal arranged in the plug pin. The shielding cover includes a base in the form of a plate and a cover in the form of a ring. The base is attached to the end face of the base plate, and a through hole for the plug pin to pass through is arranged on the base. The cover is sleeved on at least part of the plug pin, and one end of the cover is in abutment and electrical connection with the base.

[0008] The connecting assembly provided by the present application includes a plug and a socket adapted for plug-in connection. The plug includes a plug sheath and a plug shielding shell arranged in the plug sheath. The socket is provided with the shielding structure as described above. One end of the plug shielding shell near the socket is sleeved outside the cover of the shielding structure and is in electrical connection.

[0009] The present application has at least the following beneficial effects:

[0010] 1. The plug pins pass through the through holes in the plate-shaped base, so that the base can cover the plane around the root of the plug pins. Therefore, the base can achieve shielding on the plane around the root of the plug pins. At the same time, in conjunction with the cover sleeved on at least part of the plug pins, all-round shielding coverage can be achieved to avoid electromagnetic leakage and achieve better shielding effect.

[0011] 2. The base and the cover can be processed separately and then assembled. The shielding height can be adjusted by adjusting the length of the cover in the insertion direction.

[0012] 3. Different models of products with different plug-in directions and shielding heights can use the same base, only needing to replace the appropriate cover. Alternatively, when the plug pins are the same but the housings are different, the cover can be used interchangeably, only needing to replace the appropriate base. This increases the versatility of parts and helps reduce costs and increase efficiency.

[0013] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0015] Figure 1 is a schematic diagram of the exploded structure of the socket;

[0016] Figure 2 is a schematic diagram of the assembled base and cover;

[0017] Figure 3 is a schematic diagram of the base structure;

[0018] Figure 4 is a schematic diagram of the cover structure;

[0019] Figure 5 is a schematic diagram of the socket after assembly from one perspective;

[0020] Figure 6 shows another perspective view of the assembled socket;

[0021] Figure 7 is a schematic diagram showing the relative positions of the base, enclosure, and plug-in feet;

[0022] Figure 8 is a schematic diagram of the structure at the clearance hole on the substrate;

[0023] Figure 9 is a schematic diagram of the connection status of the connecting components;

[0024] Figure 10 is a schematic diagram of the plug structure;

[0025] Figure 11 is a schematic diagram of the plug structure after the end cap is removed.

[0026] As shown in the figure, the following are marked: 1, base plate; 11, boss; 111, connecting strip; 12, mounting groove; 13, avoiding hole; 2, insertion foot; 21, clamping groove; 3, fence; 4, base; 41, through hole; 42, mounting plate; 43, second contact; 44, contact pin; 441, supporting part; 442, first contact; 443, contact part; 444, connecting part; 445, reinforcing part; 5, cover; 51, clamping jaw; 52, accommodating groove; 6, plug; 61, end cover; 611, contact hole; 62, plug shielding shell; 63, third contact; 64, plug sheath; 65, shielding cable; 7, socket. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps, the numerical expressions, and the numerical values set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.

[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the scope of the application or its application or uses.

[0029] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the specification, where appropriate.

[0030] In all of the examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.

[0031] As shown in FIGS. 1-8, an embodiment of the present application provides a shielding structure for a connector, which includes a housing and a shielding cover arranged on the housing, the housing includes a base plate 1, an insertion foot 2 protruding from an end surface of the base plate 1, and a terminal arranged in the insertion foot 2, and the shielding cover includes a base 4 in the form of a plate and a cover 5 in the form of a ring, the base 4 is attached to a part of the end surface of the base plate 1 and through holes 41 are arranged in the base 4 for the insertion foot 2 to pass through, so that the base 4 surrounds the root of the insertion foot 2 to cover the plane around the root of the insertion foot 2, the cover 5 is sleeved on at least part of the insertion foot 2, and one end of the cover 5 abuts against and is electrically connected with the base 4, thereby realizing that the cover 5 and the base 4 jointly cover the insertion foot 2, and in fact, the cover 5 in this embodiment is sleeved on the middle part to the root part of the insertion foot 2. It can be understood that the root of the insertion foot 2 refers to the end connected with the base plate 1, and the plane around the root of the insertion foot 2 refers to a part of the end surface of the base plate 1, which is located around the root of the insertion foot 2 and is substantially perpendicular to the insertion foot 2.

[0032] In the embodiment, the plug pin 2 passes through the through hole 41 provided on the plate-shaped base 4, so that the base 4 can cover the plane around the root of the plug pin 2, and thus the base 4 can shield the plane around the root of the plug pin 2, and the cover 5 sleeved on the plug pin 2 can realize all-around shielding and covering of the middle-to-root region of the plug pin 2 and the plane around the root of the plug pin 2, so as to avoid electromagnetic leakage and achieve better shielding effect. In addition, the base 4 and the cover 5 in the embodiment can be machined separately and then combined and installed, and the shielding height in the plug-in direction can be adjusted by adjusting the length of the cover 5, so that the application range is wider. Moreover, for similar models of products with different shielding heights in the plug-in direction, the base 4 can be used universally, and only the matched cover 5 needs to be replaced. Alternatively, for the same plug pin 2 and the same shielding height but different housings, the cover 5 can be used universally, and only the matched base 4 needs to be replaced. The parts are universal, which is beneficial to cost reduction and efficiency improvement.

[0033] Further, in order to protect the plug pin 2 and facilitate connection with a counter-connector, as shown in FIGS. 1, 5 and 7, in the embodiment, the end face of the base plate 1 further extends a protruding annular enclosure 3, the plug pin 2 is located in the enclosure 3, and the base 4 is filled in the inner circle of the enclosure 3. In other words, the enclosure 3 surrounds the plug pin 2, and the base 4 is inserted between the plug pin 2 and the enclosure 3. In the embodiment, the plane around the root of the plug pin 2 can also be understood as the end face of the base plate 1 located in the enclosure 3 and not covered by the plug pin 2, and this part of the end face is covered by the base 4 filled between the enclosure 3 and the plug pin 2.

[0034] Further, considering the general electric energy transmission scene, the plug pin 2 is provided with at least two, as shown in FIGS. 2 and 5, in the embodiment, the plug pin 2 is specifically selected as two, the through holes 41 on the base 4 are correspondingly provided in the number of the plug pins 2, and each outer side of the plug pin 2 is covered by one cover 5.

[0035] It can be understood that in other embodiments, even if the connector is of a type provided with only one plug pin, the shielding structure of the present solution is also applicable.

[0036] Further, in order to increase the connection relationship between the base 4 and the cover 5 and enhance the electrical connection performance of the base 4 and the cover 5, in the embodiment, the base 4 is provided with a mounting seat at the inner side of the through hole 41 in the direction protruding along the plug pin 2, and the cover 5 is sleeved on the mounting seat and detachably connected with the mounting seat. The mounting seat increases the electrical contact position between the cover 5 and the base 4, thereby improving and enhancing the electrical connection performance of the cover 5 and the base 4.

[0037] Further, in order to facilitate the molding process, and to simply and efficiently enable the sleeve of the mounting base and the cover 5, as shown in FIG. 2 and FIG. 3, in the embodiment, the mounting base includes a set of mounting plates 42 arranged oppositely, one end of the mounting plate 42 is connected to the inner side of the through hole 41, and the other end is a free end and extends in the direction of protruding the plug-in pin 2, and the end of the cover 5 close to the base 4 is sleeved on the outer side of the set of mounting plates 42 and abuts to the base 4, and the mounting plate 42 has an electrical contact relationship with the inner side wall of the cover 5, thereby achieving the purpose of improving and enhancing the electrical connection performance of the cover 5 and the base 4.

[0038] In addition, the sleeve of the cover 5 on the outer side of the mounting plate 42 can shield the mounting plate 42, ensure the reliable connection between the cover 5 and the mounting base, prevent the free end of the mounting plate 42 from being offset in the direction away from the plug-in pin 2 due to extrusion and collision, and further avoid damage to the shielding structure and affect the electrical connection performance of the cover 5 and the base 4.

[0039] In the embodiment, the mounting base at each through hole 41 includes a set of mounting plates 42, each set of mounting plates 42 includes two oppositely arranged mounting plates, and the mounting plate 42 is arranged on the long side of the rectangular through hole 41. In other embodiments, the number of mounting plates can be two or more sets, according to actual needs.

[0040] Further, in order to facilitate the sleeve of the cover 5 close to and on the outer side of the mounting plate 42, in the embodiment, the spacing between each set of oppositely arranged two mounting plates 42 gradually decreases in the direction away from the base 4. That is, the free ends of each set of oppositely arranged two mounting plates 42 are close to each other, so that the spacing between the free ends of the oppositely arranged two mounting plates 42 is smaller than the spacing between the other ends, thereby forming an inclined structure that facilitates the sleeve of the cover 5, and after the base 4 is installed on the substrate 1, the free end of the mounting plate 42 can also elastically abut on the outer side of the plug-in pin 2, so that the free ends of the oppositely arranged two mounting plates 42 can clamp the plug-in pin 2, thereby providing part of the positioning and retaining force for the base 4, preventing the base 4 from easily separating from the substrate 1.

[0041] Further, in order to further enhance and stabilize the electrical connection performance of the base 4 and the cover 5, as shown in FIG. 3, in the embodiment, the mounting plate 42 has a plurality of second contacts 43 protruding outwardly, and the plurality of second contacts 43 abut and are electrically connected to the inner side wall of the cover 5, so that the electrical connection performance of the cover 5 and the mounting plate 42 is fully guaranteed. Specifically, in the example of FIG. 3, the second contacts 43 are respectively arranged on the outer side surfaces of the two oppositely arranged mounting plates 42 which face away from each other.

[0042] In addition, in the embodiment, three second contacts 43 are arranged on each mounting plate 42, and the middle second contact 43 is arranged along a straight line parallel to the plane of the base 4, and the length of the middle second contact 43 along the straight line is greater than that of the other two second contacts 43, so as to provide more contact positions.

[0043] Further, in order to prevent the cover 5 from being deformed outwardly due to excessive extrusion of the mounting plate 42 after the cover 5 is sleeved on the outer side of the mounting plate 42, and affecting the structural stability of the cover 5, as shown in FIGS. 2-4, in the embodiment, a receiving groove 52 for receiving the mounting plate 42 is arranged at the position corresponding to the mounting plate 42 on the inner side wall of the cover 5, and after the cover 5 is mounted on the mounting seat, the mounting plate 42 is inserted into the receiving groove 52, and the receiving groove 52 is actually a groove structure formed by the outer expansion or recess of the corresponding position on the inner side wall of the cover 5.

[0044] Further, in order to position the cover 5 and prevent the cover 5 from being separated from the plug-in foot 2, as shown in FIGS. 4 and 5, in the embodiment, an inwardly inclined clamping jaw 51 is arranged at the end of the cover 5 away from the base 4, and a clamping groove 21 corresponding to the clamping jaw 51 is arranged on the outer wall of the plug-in foot 2, and after the cover 5 is sleeved on the plug-in foot 2, the clamping jaw 51 is at least partially embedded in the clamping groove 21 and is clamped with the clamping groove 21, so as to position the cover 5 on the plug-in foot 2.

[0045] In order to ensure the positioning effect, the above-mentioned clamping jaw 51 is arranged in at least one group. In the embodiment, as shown in FIG. 4, two groups of clamping jaws 51 are arranged on each cover 5. For example, the two groups of clamping jaws 51 are arranged at the edges of the two long sides of the cover 5, and each group of clamping jaws 51 includes two clamping jaws 51 arranged at intervals along the long side of the cover 5.

[0046] Further, in order to realize the electrically conductive connection between the base plate 1 and the inner side wall of the mounting hole on the corresponding mounting panel for mounting the connector, and realize good shielding function, as shown in FIG. 8, in the embodiment, an avoiding hole 13 is arranged through the base plate 1, and a contact structure extending away from the cover 5 is arranged on the outer edge of the base 4, the contact structure passes through the avoiding hole 13 and is partially located on the other side of the base plate 1 relative to the plug-in foot 2.

[0047] Further, in order to ensure the contact performance of the contact structure, as shown in FIGS. 2, 3 and 6, in the embodiment, the contact structure is a plurality of contact pins 44 arranged uniformly along the outer edge of the base 4, the contact pin 44 includes a connecting portion 444 passing through the avoiding hole 13, and a contact portion 443 connected with the connecting portion 444, and the contact portion 443 is exposed outside the avoiding hole 13.

[0048] Further, in order to increase the structural strength of the adjacent contact pins 44 and increase the shielding coverage area, at least two adjacent connecting portions 444 are further provided with a reinforcing portion 445 connecting the connecting portion 444 and the outer edge of the base 4, and the reinforcing portion 445 passes through the avoiding hole 13 together with the connecting portion 444. As shown in FIG. 3, in the embodiment, the four sides of the base 4 are each provided with a reinforcing portion 445 located between two adjacent connecting portions 444.

[0049] Further, in order to ensure the electrical connection performance of the contact portion 443, as shown in FIGS. 3 and 6, in the embodiment, the outward side of the contact portion 443 is provided with a first contact 442 protruding outward.

[0050] Further, in order to facilitate the contact pin 44 to enter the mounting hole on the mounting panel, as shown in FIGS. 2, 3 and 6, in the embodiment, the free end of the contact portion 443 is further extended and connected with a supporting portion 441, which is gradually extended in the direction towards the inside of the base 4, thereby forming a bevel structure facilitating the entry into the mounting hole.

[0051] Further, in order to position the contact pins 44 and prevent the contact pins 44 from being excessively bent inward, as shown in FIG. 6, in the embodiment, the other side of the substrate 1 relative to the plug pin 2 is provided with a boss 11 extending in a protruding manner, and the contact pin 44 is arranged around the side of the boss 11.

[0052] In the embodiment, the supporting portion 441 and the boss 11 elastically abut, so that in the case of the supporting portion 441 elastically supporting the contact pin 44, the first contact 442 can elastically abut at the mounting panel, thereby ensuring the good electrical contact performance of the contact pin 44 and the mounting hole.

[0053] Further, in order to further position the contact pins 44 and prevent the contact pins 44 from being deflected towards the adjacent contact pins 44 under force, as shown in FIGS. 6 and 8, in the embodiment, the side of the boss 11 is provided with a plurality of mounting grooves 12 along the protruding extension direction of the boss 11, the contact pin 44 is located in the mounting groove 12, and the first contact 442 protrudes outward from the mounting groove 12, and the supporting portion 441 actually elastically abuts with the groove bottom of the mounting groove 12.

[0054] As shown in FIGS. 6 and 8, in the embodiment, the boss 11 is actually connected with the substrate 1 as an integral structure through a plurality of connecting strips 111 around the boss 11, and the connecting strips 111 are located between adjacent mounting grooves 12.

[0055] Of course, it can be understood that in other embodiments, the contact pin can also be partially located in the mounting groove, for example, the aforementioned supporting portion is located in the mounting groove, and the contact portion and the first contact both protrude outward from the mounting groove, and the groove depth of the mounting groove is shallower than that of the mounting groove in the embodiment.

[0056] In other embodiments, the contact structure can also be a flange structure provided at the outer edge of the base, the flange structure passing through the escape hole and being provided with a contact point in conductive connection with the mounting panel.

[0057] Further, in order to ensure the shielding effect, in the embodiment, the base 4 and the cover 5 are integrally punched and formed by a metal plate, and in particular, the base 4 is integrally punched and formed by a whole metal plate, as shown in FIG. 3, so that no gap is formed on the plane around the root of the plug-in pin 2, and good shielding performance is ensured.

[0058] As shown in FIG. 9, the embodiment of the application further provides a connecting assembly, which comprises the plug 6 and the socket 7 adapted to be plugged in, the plug 6 constituting the aforementioned mating connector, and the socket 7 constituting the aforementioned connector, the plug 6 comprising a plug sheath 64 and a plug shielding shell 62 provided in the plug sheath 64, the socket 7 being provided with the aforementioned shielding structure, and the plug shielding shell 62 being sleeved on the outside of the cover 5 of the shielding structure at one end close to the socket 7 and being in electrical connection.

[0059] Further, in order to ensure that the plug shielding shell 62 has good electrical contact performance with the cover 5, as shown in FIG. 10 and FIG. 11, in the embodiment, a plurality of third contact points 63 in electrical connection with the outside of the cover 5 are provided on the inner wall of the one end of the plug shielding shell 62 close to the socket 7.

[0060] As shown in FIG. 10, the plug 6 further comprises an end cover 61 provided in the plug sheath 64 at the end close to the socket 7, the end cover 61 being used for protecting the plug shielding shell 62 and being provided with a contact hole 611 through which the third contact point 63 passes to be in electrical connection with the outside of the cover 5.

[0061] When assembling the shielding structure of the socket 7, as shown by the arrow in Fig. 1, first, the base 4 is attached to the substrate 1, in the process, the plug-in pin 2 passes through the through hole 41 and the contact pin 44 passes through the avoiding hole 13 and enters the corresponding mounting groove 12, until the base 4 is attached to the substrate 1, then the cover 5 is sleeved on the plug-in pin 2, until the end of the cover 5 abuts against the base 4 and the mounting plate 42 is inserted into the accommodating groove 52, at this time, the clamping jaw 51 on the cover 5 is embedded in the clamping groove 21 on the outside of the plug-in pin 2 and is clamped with the clamping groove 21, so that the cover 5 and the base 4 are positioned, the assembly of the shielding structure of the socket 7 is completed, then the socket 7 can be installed in the mounting hole of the mounting panel after the assembly of the terminals and other parts of the socket 7 is completed (or the shielding structure can also be assembled after the assembly of the terminals and other parts is completed), and is connected with the plug 6, at this time, the plug shielding shell 62 which has been electrically connected with the shielding layer of the shielding cable 65 in the plug sheath 64 is electrically connected with the cover 5 through the third contact 63, the cover 5 is electrically connected with the base 4 through the second contact 43, and the base 4 is electrically connected with the inner wall of the mounting hole of the mounting panel through the first contact 442, forming a complete shielding mechanism, realizing the predetermined shielding function, and in electromagnetic shielding, the base 4 in the socket 7 can shield the plane around the root of the plug-in pin 2, and cooperating with the cover 5 sleeved on the plug-in pin 2, the middle part to the root area of the plug-in pin 2 and the plane around the root of the plug-in pin 2 can be fully shielded and covered, avoiding electromagnetic leakage, and the shielding effect is better.

[0062] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A shield structure comprising a housing and a shield cover provided on the housing, the housing comprising a base plate, a plug-in pin protruding from an end surface of the base plate, and a terminal provided in the plug-in pin, wherein, The shield cover comprises a base in the shape of a plate and a cover body in the shape of a ring, the base is attached to the end face of the substrate and through holes are provided on the base for the plug pins to pass through, the cover body is sleeved on at least part of the plug pins, and one end of the cover body abuts against and is electrically connected to the base.

2. A shielding structure as claimed in claim 1, wherein, The end face of the substrate further extends a protruding ring-shaped enclosure, the plug pins are located in the enclosure, and the base is filled in the inner ring of the enclosure.

3. A shielding structure as claimed in claim 1, wherein, The plug pins are provided in at least two, the through holes on the base are provided in a number corresponding to the plug pins, and the outer side of each plug pin is covered by one cover body.

4. A shielding structure as claimed in claim 1, wherein, The base is provided with a mounting seat at the inner side of the through hole in the direction in which the plug pins protrude, the cover body is sleeved on the mounting seat and detachably connected between the mounting seat.

5. A shielding structure as claimed in claim 4, wherein, The mounting seat comprises at least one set of mounting plates arranged oppositely, one end of the mounting plate is connected to the inner side of the through hole, the other end is a free end and extends in the direction in which the plug pins protrude, and the end of the cover body close to the base is sleeved on the outer side of at least one set of the mounting plates and abuts against the base.

6. A shielding structure as claimed in claim 5, wherein, The spacing between each set of oppositely arranged mounting plates gradually decreases in the direction away from the base.

7. A shielding structure as claimed in claim 5, wherein, The mounting plate has a plurality of second contacts protruding outward on the mounting plate, and the plurality of second contacts abut against and are electrically connected to the inner side wall of the cover body.

8. A shielding structure as defined in claim 5, wherein, The inner side wall of the cover body is provided with a receiving groove for receiving the mounting plate at a position corresponding to the mounting plate, and in the state that the cover body is mounted on the mounting seat, the mounting plate is inserted into the receiving groove.

9. A shielding structure as claimed in any one of claims 1 to 8, wherein, The end of the cover body away from the base is provided with an inwardly inclined clamping jaw, and the outer wall of the plug pin is provided with a clamping groove at a position corresponding to the clamping jaw, and in the state that the cover body is sleeved on the plug pin, the clamping jaw is at least partially embedded in the clamping groove and is clamped with the clamping groove to position the cover body on the plug pin.

10. A shielding structure as claimed in claim 9, wherein, The clamping jaw is oppositely provided with at least one set.

11. A shielding structure as claimed in any one of claims 1 to 8, wherein, The substrate is provided with an avoiding hole, the outer edge of the base is provided with a contact structure extending away from the cover body, the contact structure passes through the avoiding hole and is partially located on the other side of the substrate relative to the plug pin.

12. A shielding structure as claimed in claim 11, wherein, The contact structure is a plurality of contact pins uniformly arranged along the outer edge of the base, the contact pin comprises a connecting portion passing through the avoiding hole and a contact portion connected with the connecting portion, and the contact portion is exposed outside the avoiding hole.

13. A shielding structure as claimed in claim 12, wherein, At least two adjacent connecting portions are further provided with a reinforcing portion connecting the connecting portions and the outer edge of the base, and the reinforcing portion passes through the avoiding hole together with the connecting portion.

14. A shielding structure as defined in claim 12, wherein, The contact portion is provided with a first contact protruding outward on one side thereof facing outward.

15. A shielding structure as claimed in claim 14, wherein, The free end of the contact portion is further provided with a support portion extending in the direction towards the inside of the base.

16. A shielding structure as defined in claim 14, wherein, The other side of the substrate relative to the plug pin is provided with a protrusion extending in a protruding direction, and the contact pin is arranged around the side of the protrusion.

17. A shielding structure as defined in claim 16, wherein, The side surface of the boss is provided with a plurality of mounting grooves along the direction of the boss protrusion, and the contact pin is at least partially located in the mounting grooves, and at least the first contact pin protrudes outward from the mounting grooves.

18. A shielding structure as claimed in any one of claims 1 to 8, wherein, The base and the cover are integrally punched and formed by a metal plate.

19. A connection assembly comprising a plug and a socket which mate with one another, the plug comprising a plug jacket and a plug shield housing arranged within the plug jacket, wherein, The socket is provided with the shielding structure as claimed in any one of claims 1-18, and the end of the plug shielding shell close to the socket is sleeved outside the cover and electrically connected.

20. A connection assembly as claimed in claim 19, wherein, The inner wall of the end of the plug shielding shell close to the socket is provided with a plurality of third contacts electrically connected with the outer side of the cover.

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