Male end connector, female end connector and PCB welding connector

Abstract

The utility model relates to the technical field of connectors, in particular to a male-end connector, a female-end connector and a PCB (printed circuit board) welding connector. The utility model provides a brand new female end connector, which comprises a female end shell, a female end shielding piece is connected outside the female end shell, and the female end shielding piece is in shielding contact with an outer shield of a male end connector through a first contact part on the female end shielding piece. And the female end shielding piece is also provided with a second contact part for shielding conduction with external equipment, so that shielding conduction of a cable connected with the male end connector, the male end connector, the female end connector and the external equipment for installing the female end connector can be realized. The limitation of the shielding effect of an existing connector is broken through, a complete shielding path is formed for a signal loop, and the signal transmission quality of the connector is improved.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a male-female connector and a PCB board soldering connector. Background Technology

[0002] In recent years, the new energy vehicle industry has developed rapidly, with a rapid increase in the number of new energy vehicles on the road. This has led to a surge in demand and production of electrical components used in new energy vehicles. The power supply system is a crucial component of the new energy vehicle system, requiring high reliability and safety. The battery control unit installed in the battery box of the power supply system often uses PCB board soldered connectors, playing a vital role in signal transmission and power control. The reliability of its signal transmission is also critical.

[0003] PCB board soldering connectors include mutually compatible plugs and sockets. The plugs and sockets are shielded by a shielding structure. In existing connector assemblies, the effect of sufficient shielding inside the connector assembly is mostly achieved by overlapping the plug and socket parts.

[0004] As disclosed in Chinese invention patent application CN113725642A, a connector assembly includes a socket connector and a plug connector. The plug connector includes a signal post, one side of which is in electrical contact with the signal line of a cable. The plug connector also includes a shielding cover that surrounds the signal post and exposes the lower surface of the signal post on the other side. The socket connector includes a socket shielding shell and a socket base. The socket base has an insulating component and a socket contact. The insulating component is mounted on the socket base and surrounds the lateral surface of the socket contact, thus maintaining insulation between the socket base and the socket contact. The socket shielding shell surrounds the outside of the socket base and is fixed to the bottom of the socket base by riveting. The socket shielding shell and the upper surface of the socket base form an insertion cavity for the plug connector to be inserted. The signal line and signal post are primarily shielded by the shielding cover in the plug connector, secondly by the plug shell outside the shielding cover, and finally by the surrounding shielding of the socket base and socket shell at the mating end. However, the existing technology does not disclose that the shielding component of the socket is connected to the grounding circuit at the socket end. As a result, the entire connector assembly does not form a complete shielding path and cannot completely shield the signal circuit. In the case of a large number of signal circuits in the power supply system of new energy vehicles, it is difficult to guarantee the signal transmission quality. Utility Model Content

[0005] The purpose of this invention is to provide a female connector that solves the problem of poor overall shielding caused by the lack of conductive connection between the female connector and the external shielding structure. This invention also provides a male connector compatible with the aforementioned female connector. Furthermore, this invention provides a PCB board soldering connector using the aforementioned female connector.

[0006] To achieve the above objectives, the female connector of this utility model adopts the following technical solution:

[0007] A female connector includes a female housing, a female contact mounted inside the female housing, the female housing having a mating cavity for insertion of a mating male connector, the female contact having a portion protruding from the cavity of the mating cavity, a female shielding member provided on the outer side of the mating cavity, the female shielding member having a first contact portion extending into the cavity of the mating cavity for grounding with the outer shield of the mating male connector, and the female shielding member also having a second contact portion protruding outward for grounding with an external device when the mating cavity is inserted into a device mounting hole.

[0008] Furthermore, the second contact part is an outwardly inclined and cantilevered outer contact spring arm or an outwardly protruding contact bump provided on the female end shield.

[0009] Furthermore, the extension direction of the outer contact spring arm is consistent with the insertion direction of the male connector.

[0010] Furthermore, the first contact part is an inwardly inclined and cantilevered inner contact spring arm provided on the female end shield.

[0011] Furthermore, a clearance groove is provided on the insertion cavity section at the position corresponding to the inner contact spring arm, so that the inner contact spring arm can extend into the inner cavity of the insertion cavity section through the clearance groove.

[0012] Furthermore, the extension direction of the inner contact spring arm is consistent with the insertion direction of the male connector.

[0013] Furthermore, the inner cavity of the insertion cavity is a convex-shaped inner cavity including an upper narrow cavity section and a lower wide cavity section, with a cross-sectional shape of convex. The upper narrow cavity section of the convex-shaped inner cavity is used to accommodate the secondary locking structure provided on the male connector. The top wall of the upper narrow cavity section is provided with a slot for cooperating with the secondary locking structure provided on the male connector.

[0014] Furthermore, the first contact portion is located on the left and right sides and / or bottom of the lower wide cavity section, and the second contact portion is located on the top outer side and / or bottom outer side of the insertion cavity section.

[0015] Furthermore, the female end housing includes a mounting portion located at the insertion port end of the plug cavity section facing away from the insertion port for inserting the male end connector. The tail end of the female end contact protrudes from the mounting portion for connection with the printed circuit board. A welding post is fixed on the mounting portion for welding connection with the welding hole on the printed circuit board.

[0016] Furthermore, the female end shield is a thin-walled shielding shell that wraps around the outer surface of the plug-in cavity section.

[0017] Beneficial effects: This utility model provides a novel female connector, which includes a female housing and a female shield connected to the outside of the female housing. The female shield and the outer shield of the male connector achieve shielding contact through a first contact portion on the female shield. The female shield is also provided with a second contact portion for shielding conduction with external devices. This enables shielding of the cable connected to the male connector, shielding of the male connector, shielding of the female connector, and shielding conduction of the external device on which the female connector is installed. It breaks through the limitations of the shielding effect of existing connectors, forms a complete shielding path for the signal circuit, and improves the signal transmission quality of the connector.

[0018] The PCB board soldering connector of this utility model adopts the following technical solution:

[0019] A PCB board soldering connector includes a male connector and a female connector that are mutually compatible. The female connector includes a female housing, a female contact is installed inside the female housing, the female housing has a mating cavity for insertion of the mating male connector, the female contact has a portion protruding from the inner cavity of the mating cavity, a female shield is provided on the outer side of the mating cavity, the female shield has a first contact portion extending into the inner cavity of the mating cavity for grounding with the outer shield of the mating male connector, and the female shield also has a second contact portion protruding outward for grounding with an external device when the mating cavity is inserted into a device mounting hole, the male connector has a mating segment inserted into the mating cavity, the mating segment has a male shield, the male shield protruding from at least a portion of the outer surface of the mating segment for grounding with the first contact portion of the female connector.

[0020] Furthermore, the cross-sectional shape of the portion of the male end shield exposed from the plug section is U-shaped.

[0021] Furthermore, the second contact part is an outwardly inclined and cantilevered outer contact spring arm or an outwardly protruding contact bump provided on the female end shield.

[0022] Furthermore, the extension direction of the outer contact spring arm is consistent with the insertion direction of the male connector.

[0023] Furthermore, the first contact part is an inwardly inclined and cantilevered inner contact spring arm provided on the female end shield.

[0024] Furthermore, a clearance groove is provided on the insertion cavity section at the position corresponding to the inner contact spring arm, so that the inner contact spring arm can extend into the inner cavity of the insertion cavity section through the clearance groove.

[0025] Furthermore, the extension direction of the inner contact spring arm is consistent with the insertion direction of the male connector.

[0026] Furthermore, the inner cavity of the insertion cavity is a convex-shaped inner cavity including an upper narrow cavity section and a lower wide cavity section, with a cross-sectional shape of convex. The upper narrow cavity section of the convex-shaped inner cavity is used to accommodate the secondary locking structure provided on the male connector. The top wall of the upper narrow cavity section is provided with a slot for cooperating with the secondary locking structure provided on the male connector.

[0027] Furthermore, the first contact portion is located on the left and right sides and / or bottom of the lower wide cavity section, and the second contact portion is located on the top outer side and / or bottom outer side of the insertion cavity section.

[0028] Furthermore, the female end housing includes a mounting portion located at the insertion port end of the plug cavity section facing away from the insertion port for inserting the male end connector. The tail end of the female end contact protrudes from the mounting portion for connection with the printed circuit board. A welding post is fixed on the mounting portion for welding connection with the welding hole on the printed circuit board.

[0029] Furthermore, the female end shield is a thin-walled shielding shell that wraps around the outer surface of the plug-in cavity section.

[0030] Beneficial effects: This utility model provides a PCB board soldering connector, including a male connector and a female connector that are compatible with each other. By setting a first contact part on the female shield that is connected to the ground of the external shield of the male connector and a second contact part that makes shielded contact with external equipment, the shielding between the male connector and the cable, the shielding between the male connector and the female connector, and the shielding connection between the female connector and the external equipment are realized, thereby improving the shielding performance of the PCB board soldering connector and making the PCB board soldering connector form a complete shielding path.

[0031] The present invention relates to a male connector, comprising a male housing, a male contact installed inside the male housing, a plug section at the front end of the male housing for insertion into a plug cavity of a female connector, a male shield on the plug section, the male shield protruding from at least a portion of the outer surface of the plug section to be grounded and conductive with the first contact portion of the female connector, the cross-sectional shape of the portion of the male shield protruding from the plug section being U-shaped, the outer side of the U-shaped portion being grounded and conductive with the first contact portion of the female connector, and a locking structure on the side of the opening of the U-shaped portion facing the male housing for locking connection with the female connector.

[0032] Furthermore, the locking structure is a two-stage locking structure.

[0033] The male connector of this utility model can be grounded and connected to the first contact part of the female connector through the male shield exposed from the insertion section, realizing shielded interconnection between the male connector and the female connector. The locking structure ensures the reliability of the male and female connector mating and the reliability of signal transmission of the entire PCB board soldered connector. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of one embodiment of the PCB board soldering connector of this utility model;

[0035] Figure 2 for Figure 1 Schematic diagram of the female connector structure;

[0036] Figure 3 for Figure 1 Schematic diagram of the male connector;

[0037] Figure 4 This is a schematic diagram of the PCB board soldering connector of this utility model from another perspective.

[0038] Figure 5 for Figure 4 The diagram shows a cross-sectional view of the structure at the female end contact point.

[0039] Figure 6 This is a cross-sectional view of the female contact at another embodiment of the PCB board soldering connector of this utility model;

[0040] Figure 7 for Figure 3 Side view of the male connector;

[0041] Figure 8 for Figure 2 A schematic diagram of the structure of a female connector without a female shield;

[0042] Figure 9 for Figure 1 A schematic diagram of the Zhonggong connector from another perspective.

[0043] In the diagram: 1. PCB board soldering connector; 2. Female connector; 21. Female housing; 211. Groove; 212. Clearance groove; 213. Slot; 22. Female shield; 221. Inner contact spring; 222. Outer contact spring; 223. Bending section; 224. Snap-fit; 25. Soldering post; 26. Soldering pin; 27. Guide post; 28. Female contact; 3. Male connector; 31. Male housing; 311. Protrusion; 32. Male shield; 33. Terminal; 4. Insertion cavity section; 41. Upper narrow cavity section; 42. Lower wide cavity section; 5. Two-stage locking structure. Detailed Implementation

[0044] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0045] The inventive concept of this utility model is as follows: Addressing the issue that existing connector assemblies fail to form a complete shielded conductive loop to shield the signal circuit, thus affecting the overall shielding effect of the connector assembly, this utility model provides a PCB board soldering connector that achieves shielded conduction between the male connector and the cable, the male connector and the female connector, and the female connector and the external structure, thereby forming a complete shielded conductive loop, improving the shielding performance of the connector, and ensuring product reliability.

[0046] As a basic technical solution, the PCB board welding connector of this utility model includes a female connector. A female shield is connected to the outside of the female housing. The female shield is provided with a first contact part that is connected to the external shield ground of the compatible male connector and a second contact part that is connected to the ground of the external device. After the male connector and the female connector are inserted, a complete shielded conductive loop is formed between the male connector and the cable, the male connector and the female connector, and the female connector and the external structure, which ensures the quality and reliability of the product and achieves the comprehensive shielding effect of the PCB board welding connector.

[0047] Based on the above main concepts, the following embodiments are provided for illustration.

[0048] like Figure 1-3As shown, the PCB board soldering connector 1 in this embodiment includes a male connector 3 and a female connector 2 that are mutually compatible. A male shield 32 is installed inside the male housing 31. One end of the male connector 3 has a plug section for mating with the female connector 2. The male shield 32 has a portion exposed from the outer surface of the plug section to be grounded and connected to the female connector 2. The other end of the male connector 3 is a terminal 33 for connecting a cable. The portion of the male shield 32 at this end is used to fix it to the male connector 3. Specifically, the male shield 32 inside the male housing 31 is connected to the shielding layer of the cable to achieve shielded conduction between the male connector 3 and the cable.

[0049] The female connector 2 includes a female housing 21, within which a female contact 28 is installed. The female contact 28 is a plate-type contact, comprising a plate-shaped body. The female housing 21 has a insertion cavity 4 for inserting a male connector 3. The female contact 28 has an insert portion protruding from the inner cavity of the insertion cavity 4. A female shield 22 is provided on the outer side of the insertion cavity 4. After the insertion section of the male connector 3 is inserted into the inner cavity of the insertion cavity, the male connector contact and the female contact are connected, forming a signal circuit. To prevent the male connector 3 and the female connector 2 from disengaging due to external interference, and to further ensure the stability and reliability of the connection, in some embodiments, a locking structure is provided between the male connector and the female connector. The locking structure can take various forms. In one embodiment, a slot is provided on the inner wall of the insertion cavity, and the locking structure is a spring claw provided on the insertion section that engages with the slot. Considering that vibration, impact, or other external forces may occur in the actual usage environment, such as... Figure 1 , 7 As shown in Figure 9, in one embodiment, to ensure the reliability of the connection, the locking structure is a secondary locking structure 5 disposed on the plug section. The secondary locking structure 5 is a mature existing technology. The structural form of a secondary locking structure can be referred to the secondary locking structure in a POF male connector disclosed in Chinese Invention Patent Application Publication No. CN117310892A, which will not be described in detail here.

[0050] like Figure 4-5As shown, since the outer surface of the insertion cavity section 4 is provided with a female end shield 22, when a secondary locking structure 5 is provided on the male end connector 3, it is natural to need to accommodate the secondary locking structure within the insertion cavity section 4. In one embodiment, the cross-sectional shape of the insertion cavity section 4 is generally rectangular, that is, its inner cavity is a rectangular inner cavity, with part of the inner cavity space used to accommodate the insertion section and part of the inner cavity space used to accommodate the secondary locking structure 5. In order to maximize the miniaturization of the PCB board soldering connector 1 in the assembly environment and avoid occupying too much installation space, the shape of the insertion cavity section 4 should be designed to accommodate the secondary locking structure 5 while also keeping the overall size of the female end connector 2 miniaturized. Therefore, in one embodiment, the inner cavity of the insertion cavity section 4 is a convex-shaped inner cavity including an upper narrow cavity section 41 and a lower wide cavity section 42, with a convex cross-sectional shape. The upper narrow cavity section 41 of the convex inner cavity is used to accommodate the secondary locking structure 5 provided on the male adapter connector 3. The top wall of the upper narrow cavity section 41 is provided with a slot 213 for cooperating with the secondary locking structure 5 provided on the male adapter connector 3. Specifically, the protrusion 311 of the secondary locking structure 5 is used to be inserted into the slot 213.

[0051] In some embodiments of this utility model, the female end shield 22 is a sleeve-shaped shell structure formed by die casting or machining, and the female end shell 21 is inserted into the female end shield 22, or the female end shell 21 and the female end shield 22 are injection molded as one piece. Figure 1 In the illustrated embodiment, to reduce costs, the female end shield 22 is a thin-walled shielding shell wrapped around the outer surface of the insertion cavity section 4. The female end shield 22 is mounted on the outside of the female end housing 21 via a mounting structure, which can be configured in various ways. In one embodiment, a groove 211 is provided on the female end housing 21, and a buckle 224 is provided on the outer female end shield 22 at a position corresponding to the groove 211. The buckle 224 engages with the groove 211 to fix the position of the female end shield 22. In another embodiment, a protrusion is provided on the female end housing 21, and a corresponding slot is provided on the female end shield 22 at the position corresponding to the protrusion. After the female end shield 22 is mounted on the female end housing 21, the protrusion engages with the slot, which also fixes the position of the female end shield 22.

[0052] Compared with the connector assemblies in the prior art, the PCB board soldering connector of this utility model can achieve shielding and conduction between the male connector and the cable, between the male connector and the female connector, and between the female connector and the external structure, forming a complete shielding path. Therefore, the female shield 22 has a first contact portion that extends into the inner cavity of the insertion cavity 4 for grounding and conducting with the outer shield of the mating male connector 3. The male shield 32 protrudes from at least a portion of the outer surface of the insertion cavity to contact and conduct with the first contact portion of the female connector 2. The female shield 22 also has a second contact portion that protrudes outward for grounding and conducting with the external equipment when the insertion cavity 4 is inserted into the equipment mounting hole.

[0053] To ensure complete shielded conduction between the PCB board soldering connector 1 and external devices, the second contact portion is disposed on the top and bottom outer sides of the insertion cavity section 4. The second contact portion can be configured in various ways. For example, in one embodiment, the second contact portion can be an outwardly protruding contact bump on the female shield 22, which contacts the external device to achieve shielded conduction between the PCB board soldering connector 1 and the external device. In other embodiments, the second contact portion can also be an outwardly inclined, overhanging outer contact spring arm 222 disposed on the female shield 22. To avoid interference from the extended end of the outer contact spring arm 222 with the external structure, in a more preferred embodiment, the extension direction of the outer contact spring arm 222 is consistent with the insertion direction of the male connector 3, and the end of the outer contact spring arm 222 has an inwardly bent section 223.

[0054] Similarly, to ensure reliable shielding and circumferential shielding of the signal circuit by forming as many shielding contacts as possible between the male connector 3 and the female connector 2, in one embodiment, the male shield is exposed from the four sides of the plug segment. For example, the plug shield includes a rectangular cylindrical section wrapped around the periphery of the plug segment, and the first contact portions are respectively located on the four sides corresponding to the top, bottom, left, and right sides of the plug segment. In another embodiment, to allow the first contact portion and the secondary locking structure on the male connector to share axial space and shorten the overall length of the connector, the cross-sectional shape of the portion of the male shield 32 exposed from the plug segment is U-shaped. The secondary locking structure is located on the side facing the opening of the U-shaped portion, semi-enclosing the plug segment. The first contact portion is located on the left and right sides and / or bottom of the lower wide cavity section 42, and contacts the portion of the male shield 22 exposed from the plug segment on three sides.

[0055] The first contact portion on the female shield 22 that overlaps with the male shield 32 also includes various configurations. In one embodiment, the first contact portion can be a contact bump protruding inward on the female shield 22, with a corresponding clearance opening on the female housing 21 to expose the contact bump. The inwardly protruding contact bump contacts the male shield 32 inside the insertion cavity 4 through the clearance opening, achieving shielded conduction. In another embodiment, the first contact portion is a contact piece located at the front end of the female shield 22. The contact piece extends forward and, after exceeding the front end of the insertion cavity, bypasses the front end of the insertion cavity and extends into the insertion cavity 4 in the opposite direction to the insertion direction of the male connector 3. The end of the overhanging section extending into the insertion cavity 4 is used for elastic contact with the male shield 32, achieving shielded conduction between the male and female connectors. In another embodiment, the first contact portion is an inner contact spring arm 221 that is inclined inward and extends on the female end shield 22, with the extension direction being opposite to the insertion direction of the male end connector 3. In order to avoid the male end connector 3 being interfered with by the extension end of the inner contact spring arm 221 during insertion, more preferably, the extension end of the inner contact spring arm 221 is provided with an outward bend. Correspondingly, since the inner contact spring arm 221 is located inside the female end shield 22 in this embodiment, an exposure position is provided on the female end housing 21 that allows the inner contact spring arm 221 to be exposed.

[0056] like Figure 2 As shown, the first contact part in this utility model is an inwardly inclined and cantilevered inner contact spring arm 221 provided on the female end shield 22. The extension direction of the inner contact spring arm 221 is consistent with the insertion direction of the male end connector 3. The female end housing 21 has a relief groove 212 at the position corresponding to the inner contact spring arm 221 so that the inner contact spring arm 221 can abut against the outside of the male end shield 22 through the relief groove 212 to realize the shielding overlap of the male end connector and the female end connector. The end of the inner contact spring arm 221 is provided with a bent section 223 facing outward.

[0057] The female housing 21 includes a mounting portion located at the insertion port of the insertion cavity 4 facing away from the insertion port for the male connector 3 to be inserted. The soldering pins 26 at the tail end of the female contact 28 protrude from the mounting portion for connection with the printed circuit board. In order to enable the PCB board soldering connector 1 and the soldering panel to achieve a quick and accurate soldering connection, a guide post 27 is also provided on the mounting portion for guiding the insertion onto the printed circuit board. In addition, considering that vibration, impact or other external forces may exist in the actual use environment, in order to further strengthen the connection and fixation of the PCB board soldering connector 1 on the PCB board, in one embodiment, a soldering post 25 is fixed on the mounting portion for soldering connection with the soldering holes on the printed circuit board, which is used to further enhance the fixation between the PCB board soldering connector 1 and the printed circuit board.

[0058] In the above embodiments, the female connector is a socket and the male connector is a plug. In other embodiments, the male connector can be a socket and the female connector can be a plug. In the above embodiments, the front end of the female contact is a insert structure and the mating male contact is a socket structure. In other embodiments, such as... Figure 6 As shown, the front end of the female contact is a socket structure, and the front end of the corresponding male contact is a insert structure.

[0059] This utility model also provides a female connector. The embodiment of the female connector has the same structure as the female connector in the above-mentioned PCB board soldering connector, and will not be described again here.

[0060] This utility model also provides a male connector. The embodiment of the male connector has the same structure as the female connector in the above-mentioned PCB board soldering connector, and will not be described again here.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A female connector, characterized in that, Includes a female end housing (21), on which a female end contact (28) is mounted. The female end housing (21) has a mating cavity for insertion of a male adapter connector (3). A female end shield (22) is provided on the outer side of the mating cavity (4). The female end shield (22) has a first contact portion that extends into the inner cavity of the mating cavity (4) for grounding with the outer shield of the male adapter connector (3). The female end shield (22) also has a second contact portion that protrudes outward for grounding with an external device when the mating cavity is inserted into a device mounting hole.

2. The female connector according to claim 1, characterized in that, The second contact part is an outwardly inclined and cantilevered outer contact spring arm (222) or an outwardly protruding contact bump provided on the female end shield (22).

3. The female connector according to claim 2, characterized in that, The extension direction of the outer contact spring arm (222) is consistent with the insertion direction of the male adapter connector (3).

4. The female connector according to any one of claims 1-3, characterized in that, The first contact part is an inwardly inclined and cantilevered inner contact spring arm (221) provided on the female end shield (22).

5. The female connector according to claim 4, characterized in that, An avoidance groove (212) is provided on the insertion cavity section at the position corresponding to the inner contact spring arm (221) so that the inner contact spring arm (221) can extend into the inner cavity of the insertion cavity section (4) through the avoidance groove (212).

6. The female connector according to claim 4, characterized in that, The extension direction of the inner contact spring arm (221) is consistent with the insertion direction of the male adapter connector (3).

7. The female connector according to any one of claims 1-3, characterized in that, The inner cavity of the plug-in cavity (4) is a convex-shaped inner cavity with an upper narrow cavity section (41) and a lower wide cavity section (42) and a cross-sectional shape of convex. The upper narrow cavity section (41) of the convex-shaped inner cavity is used to accommodate the secondary locking structure (5) provided on the male adapter connector (3). The top wall of the upper narrow cavity section (41) is provided with a slot (213) for cooperating with the secondary locking structure (5) provided on the male adapter connector (3).

8. The female connector according to claim 7, characterized in that, The first contact portion is located on the left and right sides and / or bottom of the lower wide cavity section (42), and the second contact portion is located on the top outer side and / or bottom outer side of the insertion cavity section (4).

9. The female connector according to claim 8, characterized in that, The female housing (21) includes a mounting portion located at the insertion port end of the insertion cavity section (4) facing away from the insertion port for the male connector (3) to be inserted. The tail end of the female contact (28) protrudes from the mounting portion for connection with the printed circuit board. A welding post (25) is fixed on the mounting portion for welding connection with the welding hole on the printed circuit board.

10. The female connector according to any one of claims 1-3, characterized in that, The female end shield (22) is a thin-walled shielding shell wrapped around the outer surface of the plug-in cavity section (4).

11. A PCB board soldering connector, comprising a male connector (3) and a female connector (2) that are mutually compatible, characterized in that, The female connector (2) is the female connector (2) according to any one of claims 1-10. The male connector (3) has a plug section inserted into the plug cavity (4). The plug section is provided with a male shield (32). The male shield (32) is exposed from at least a portion of the outer surface of the plug section to be grounded and connected to the first contact portion of the female connector (2).

12. The PCB board soldering connector according to claim 11, characterized in that, The cross-sectional shape of the part of the male end shield (32) exposed from the plug section is U-shaped.

13. A male connector, comprising a male housing, a male contact mounted within the male housing, a front end of the male housing having a mating section for insertion into a mating cavity of a female connector, the mating section having a male shield (32) exposed from at least a portion of the outer surface of the mating section to be grounded and connected to a first contact portion of the female connector (2), characterized in that, The male end shield (32) has a U-shaped cross-section exposed from the plug section. The outer side of the U-shaped part is used to connect to the ground with the first contact part of the female end connector. The male end housing has a locking structure on the side of the opening of the U-shaped section facing to lock it in place with the female end connector.

14. The male connector according to claim 13, characterized in that, The locking structure is a two-stage locking structure.

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