Outer conductor of a connector and method for forming an outer conductor of a connector

Abstract

The present application relates to the technical field of connectors, and in particular to an outer conductor of a connector and a forming method of the outer conductor of the connector. The outer conductor of the connector comprises a stamping-formed outer conductor base body, the front end of the outer conductor base body is provided with a variable-diameter structure with a reduced radial dimension; the front end of the outer conductor base body is provided with a folded part which is folded inward and whose end is directed rearward, and the folded part forms the variable-diameter structure; the folded part is provided with a process groove which penetrates the end of the folded part, and which is used to form a seam opening on one side of the outer conductor base body to adapt to a round-holding stamping process. Since the folded part is provided with the process groove which penetrates forward, the material of the folded part with a reduced diameter can be deformed and expanded into the process groove, so that the folded part of the outer conductor can be processed by the round-holding stamping to form the seam opening on only one side of the outer conductor. The outer conductor with only one seam opening can bear a higher tension, reduces the possibility of the seam opening of the folded part being opened, reduces the cost, and simplifies the process.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more specifically to the outer conductor of a connector. Background Technology

[0002] Connectors consist of plugs and sockets, which are electrically connected by pin-to-socket mating. Known automotive high-speed connectors, especially Mini Fakra and automotive Ethernet connectors, have contacts forming pins or sockets. An insulating element is fitted around the outer periphery of the contact, and an outer conductor is fitted around the outer periphery of the insulating element. The front end of the insulating element, corresponding to the pin-to-socket mating interface, has a change in outer diameter. The outer conductor needs to be modified to match the change in the outer diameter of the insulating element, thereby reducing the characteristic impedance of the connector.

[0003] The structure of the outer conductor is as disclosed in Chinese invention patent application CN110277698A. Figure 1 As shown, the device includes an outer conductor base 200, with an outer conductor ring 300 connected to the interface side end of the outer conductor base 200. In one embodiment, the outer conductor base 200 and the outer conductor ring 300 are integrally formed. The outer conductor ring 300 has a smaller diameter than the outer conductor base 200. The outer conductor base 200 has a front-to-back extending receiving groove 12, and the outer peripheral surface of the front end of the outer conductor base 200 has an overhanging contact lug 201. The root of the contact lug 201 is fixed to the rear bottom wall of the receiving groove 12, and the contact point 204 of the contact lug 201 can engage with a mating connector. The outer conductor ring 300 has a raised protective collar 305 at the front end of the contact lug 201 to protect the contact lug 201 from mechanical forces. The contact lugs 201 located on the upper and lower sides of the outer conductor substrate 200 are separated from the outer conductor ring 300. The outer conductor substrate 200 and the outer conductor ring 300 are connected only by the material extending from the left and right sides, forming a material bridge.

[0004] Because the outer conductor ring 300 and the outer conductor base 200 are connected by the bridge connection in the above outer conductor structure, and the outer conductor ring 300 has the bent protective sleeve ring 305, the whole outer conductor is generally processed by the way of two half outer conductors being punched in the left-right direction, so that a seam is formed on each of the upper and lower sides of the outer conductor ring. When the pin and the socket are inserted, the front end of the outer conductor base 200 is subjected to the outward tension, and because the part of the outer conductor base 200 connected with the outer conductor ring 300 is a cantilever, the front end of the cantilever is easy to bend outward when subjected to the outward force, so as to drive the outer conductor ring 300 to deform outward, and the seam of the outer conductor ring 300 is at risk of being opened. Moreover, when the contact lug 201 is engaged with the mating connector, the mating connector is subjected to the force on the contact lug 201, and the force has the axial component and the radial component, so as to easily cause the outer conductor base 200 connected with the contact lug 201 to deform, and drive the seam to be opened. In order to avoid the seam from being opened, the welding process is needed at the seam, so as to complicate the process and increase the processing cost. SUMMARY

[0005] The present application aims to provide an outer conductor of a connector to solve the technical problem of complicated process and high processing cost of the outer conductor in the prior art. The present application also aims to provide an outer conductor forming method of a connector to solve the technical problem of complicated forming method and high processing cost of the outer conductor in the prior art.

[0006] To achieve the above-mentioned purposes, the technical scheme of the outer conductor of the connector of the present application is as follows:

[0007] An outer conductor of a connector, comprising a punched outer conductor base, the outer conductor base being a sleeve structure, a variable-diameter structure with a reduced radial dimension being arranged at the front end of the outer conductor base, and the variable-diameter structure being used for matching the impedance of the connector; an inwardly folded part with a rearward end being arranged at the front end of the outer conductor base, and the folded part forming the variable-diameter structure; and a process slot being arranged on the folded part and penetrating the rear end of the folded part, and the process slot being used for forming a seam on one side of the outer conductor base to adapt to the round holding punching process.

[0008] The outer conductor of the connector of the present application has the following beneficial effects: the variable-diameter structure of the outer conductor base is formed by the inwardly folded part, and the outer conductor base has two layers of materials at the variable-diameter structure, so that the outer conductor has a high structural strength while meeting the requirement of adjusting the characteristic impedance. Because the process slot is arranged on the folded part and penetrates the front end of the folded part, the material of the folded part with a reduced diameter can be deformed and expanded into the process slot, and the excess material is avoided from accumulating, so that the folded part of the outer conductor can be processed by the round holding punching process, and only a seam is formed on one side of the outer conductor. The outer conductor with only one seam can bear a high tension, the possibility of the seam of the folded part being opened is reduced, the cost is reduced, and the process is simplified.

[0009] Further improvement, the cross section of the outer conductor base is oblong, and the process grooves are located at four corners of the oblong.

[0010] Beneficial effect: the deformation of the four corners of the outer conductor base formed by the round holding stamping is large, and this design is beneficial to the extension of the corner of the flanging part into the process groove, thereby avoiding tearing.

[0011] Further improvement, the outer conductor base is provided with a front and rear extending accommodating groove on the outer circumferential surface, the accommodating groove is provided with a front end overhanging contact lug, and the accommodating groove is located between adjacent process grooves.

[0012] Beneficial effect: compared with the process groove being arranged at the front end of the accommodating groove, this design can avoid the large size accommodating groove penetrating the end of the flanging part, so that the flanging part is connected to the outer conductor base, thereby improving the integrity of the outer conductor and improving the structural strength of the outer conductor.

[0013] Further improvement, the flanging part has a flange located between the ends of the adjacent two process grooves, the accommodating groove extends to the flanging part and forms a forward notch at the front end of the flanging part, and the front end of at least one contact lug is located in the notch.

[0014] Beneficial effect: this design increases the length of the contact lug and improves the elastic performance of the front end of the contact lug.

[0015] Further improvement, the front end surface of the flanging part is located in front of the front end surface of the contact lug in the notch, and is used to protect the contact lug from axial extrusion.

[0016] Beneficial effect: this design enables the front end surface of the flanging part to guide the insertion of the outer conductor into the mating connector when the outer conductor is mated with the mating connector, and then the protruding part of the contact lug can be smoothly inserted into the mating connector, thereby avoiding the phenomenon that the protruding part is crushed by the mating force along the axial direction of the outer conductor when the protruding part cannot enter the mating connector.

[0017] Further improvement, the flange makes the end of the accommodating groove form a blind end.

[0018] Beneficial effect: this design continuously connects the flange as much as possible in the circumferential direction, thereby improving the overall strength of the flange.

[0019] Further improvement, the flanging part further comprises a flange round corner with a circular arc cross section, and the flange round corner connects the front end surface of the outer conductor base and the flange.

[0020] Beneficial effect: this design is more conducive to guiding the insertion of the outer conductor into the mating connector.

[0021] In order to achieve the above object, the technical scheme of the outer conductor forming method of the connector of the present application is:

[0022] Step one: machining a process slot through the front end surface of the plate-shaped outer conductor base front end;

[0023] Step two: folding the plate-shaped outer conductor base front end inward until the end extends backward, and machining a folded part at the plate-shaped outer conductor base front end;

[0024] Step three: performing round holding stamping on the plate-shaped outer conductor base to machine a sleeved structure outer conductor base, and forming a seam opening on one side of the outer conductor base.

[0025] The beneficial effect is that in the outer conductor forming method of the connector of the present application, the variable diameter structure of the outer conductor base is formed by the folded part folded inward in the radial direction, and the outer conductor base has two layers of materials at the variable diameter structure. The outer conductor has higher structural strength while meeting the adjustment characteristic impedance. Since the folded part is provided with a process slot through the front end, the material of the folded part with a smaller diameter can deform and expand into the process slot during round holding stamping, thereby avoiding the accumulation of excess material and forming a seam opening only on one side of the outer conductor. The outer conductor with only one seam opening can withstand higher tension, reducing the possibility of the seam opening of the folded part, reducing costs, and simplifying the process.

[0026] Further improvement, the cross section of the outer conductor base is a long circle, and the process slot is located at the four corners of the long circle.

[0027] The beneficial effect is that the deformation of the four corners of the outer conductor base formed by round holding stamping is larger. This design is beneficial to the extension and deformation of the corner of the folded part into the process slot, avoiding tearing.

[0028] Further improvement, the outer periphery of the outer conductor base is provided with a front and rear extending accommodating groove, and a front end overhanging contact lug is arranged in the accommodating groove, and the accommodating groove is located between adjacent process slots.

[0029] The beneficial effect is that compared with arranging the process slot at the front end of the accommodating groove, this design can avoid the larger size accommodating groove through the end of the folded part, so that the connection between the folded part and the outer conductor base is improved, the overall strength of the outer conductor is improved, and the structural strength of the outer conductor is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic diagram of the outer conductor in the prior art;

[0031] Figure 2 is a structural schematic diagram of the connector to which the outer conductor of the connector of the present application is applied;

[0032] Figure 3 is a sectional view of the outer conductor of the connector of the present application;

[0033] Figure 4 is a sectional view of the outer conductor of the connector of the present application; Figure 3

[0034] Figure 5 is a sectional view of the outer conductor of the connector of the present application; Figure 3

[0035] Figure 6 is an enlarged view of A portion in Figure 5

[0036] Figure 7 is a sectional view of the outer conductor of the connector of the present application; Figure 3

[0037] Figure 8 is an enlarged view of B portion in Figure 7

[0038] BRIEF DESCRIPTION OF DRAWINGS 200, outer conductor base; 201, contact lug; 204: contact point; 300, outer conductor ring; 305, protective sleeve ring; 11, outer conductor base; 12, accommodating groove; 13, contact lug; 14, protruding portion; 15, folded portion; 16, flange; 17, flange round corner; 18, joint opening; 19, outer conductor; 20, contact; 21, insulating member; 22, process groove; 23, notch. DETAILED DESCRIPTION

[0039] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application, i.e., the described embodiments are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0041] ​​​​​It should be noted that in the specific embodiments of the present application, the relationship terms such as "first" and "second" and the like that can occur are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is such an actual relationship or order between the entities or operations. Moreover, the terms such as "include", "contain" or any other variants that can occur are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. The limiting elements that can occur, such as "including a", do not exclude the presence of other identical elements in the process, method, article or device including the elements, without more limitations.

[0042] In the description of the present application, unless otherwise explicitly specified and limited, the terms such as "mounting", "connecting", "connecting" that can occur should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the description of the present application, unless otherwise explicitly specified and limited, the term "provided with" that can occur should be understood in a broad sense, for example, the object of "provided with" can be part of the body, or it can be arranged separately from the body and connected to the body, and the connection can be detachable or non-detachable. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] The present application is further described in detail below in combination with embodiments.

[0045] Embodiment 1 of the outer conductor of the connector provided in the present application:

[0046] As shown in Figure 2 and Figure 3 , the connector includes a contact 20 forming a jack or a pin, the outer periphery of the contact 20 is sleeved with an insulating member 21, the insulating member 21 has a necked portion corresponding to the interface area of the pin and the jack pair, and the outer periphery of the insulating member 21 is sleeved with an outer conductor 19. Among them, the plug-in direction of the outer conductor 19 is defined as the front of the outer conductor 19.

[0047] As shown in Figures 4 to 8As shown, the outer conductor 19 comprises a hollow outer conductor base body 11 which is a sleeve structure with an oblong cross section, and the outer conductor base body 11 is provided with a folded portion 15 which is folded to the radial inner side and has a terminal end facing the rear end. The outer conductor 19 is processed by a round holding stamping process. In order to realize the inward folding of the outer conductor base body 11, four process grooves 22 are formed on the folded portion 15 and pass through the terminal end of the folded portion 15. The four process grooves 22 are distributed at the four corners of the outer conductor base body 11, so that the material of the folded portion 15 with a small distribution radius is deformed to the process grooves 22 in the round holding stamping process, avoiding the accumulation of the material with a small distribution radius.

[0048] The folded portion 15 has a folded round corner 17 and a folded edge 16 between the terminal ends of the adjacent two process grooves 22. The cross section of the folded round corner 17 is a circular arc, and the folded edge 16 is connected to the front end face of the outer conductor base body 11 through the folded round corner 17. The inner diameter of the folded edge 16 is smaller than the inner diameter of the outer conductor base body 11, forming a variable diameter structure, so as to match the outer diameter change of the interface area between the plug pin and the plug hole of the insulating part 21, so as to reduce the characteristic impedance of the connector. In other embodiments, the folded edge 16 is connected to the front end face of the outer conductor base body 11 through a right angle transition.

[0049] The outer peripheral surface of the front end of the outer conductor base body 11 is provided with a front and rear extending accommodating groove 12, which extends forward to the folded portion 15 and forms a forward notch 23 at the front end of the folded portion 15. The terminal end of the accommodating groove 12 is blind due to the folded edge 16, so that the folded edge 16 is connected as continuously as possible in the circumferential direction. Six accommodating grooves 12 are provided, and all the accommodating grooves 12 are distributed at intervals along the circumferential direction of the outer conductor base body 11. The part of the outer conductor base body 11 between the adjacent two accommodating grooves 12 is connected to the folded portion 15, so as to improve the connection strength of the folded portion 15 and the outer conductor base body 11. Among them, two accommodating grooves 12 are respectively arranged on the upper and lower sides of the outer conductor base body 11, and one accommodating groove 12 is respectively arranged on the left and right sides of the outer conductor base body 11. The four process grooves 22 are respectively located between the accommodating grooves 12 and the adjacent accommodating grooves 12 on the left and right sides of the outer conductor base body 11.

[0050] The accommodating groove 12 is provided with a contact lug 13 which protrudes forwardly. The root of the contact lug 13 is fixed on the rear bottom wall of the accommodating groove 12, and the front end of the contact lug 13 has a protruding portion 14 which bends to the radial inner side of the outer conductor base body 11. The protruding portion 14 is located in the notch 23 at the front end of the folded portion 15. The front end of the front end face of the folded round corner 17 is located at the front end of the front end face of the protruding portion 14. When the outer conductor 19 is inserted into the plug-in connector, the folded round corner 17 can guide the outer conductor 19 to be inserted into the plug-in connector, so that the contact lug 13 can be smoothly inserted into the plug-in connector, so as to avoid the phenomenon that the protruding portion 14 is crushed by the extrusion force along the axial direction of the outer conductor 19 when the contact lug 13 cannot enter the plug-in connector.

[0051] The outer conductor forming method of the above connector includes the following steps:

[0052] Step one: four process grooves 22 and six receiving grooves 12 are machined on the surface of the front end of the plate-shaped outer conductor base body 11, the process grooves 22 pass through the front end of the plate-shaped outer conductor base body 11, and the receiving grooves 12 are a certain distance away from the front end of the plate-shaped outer conductor base body 11. Among them, the four process grooves 22 are divided into two groups, each group includes two adjacent process grooves 22, and two receiving grooves 12 are distributed between each group of process grooves 22, and the remaining two receiving grooves 12 are respectively distributed on both sides of one group of process grooves 22.

[0053] Step two: the front end of the plate-shaped outer conductor base body 11 is folded inward, and the end of the folded part 15 extends backward, the folded part 15 includes a folded edge 16 parallel to the surface of the plate-shaped outer conductor base body 11 and a folded corner 17, the cross section of the folded corner 17 is a circular arc, and the front groove wall of the folded receiving groove 12 is located at the front end surface of the folded edge 16.

[0054] Step three: the plate-shaped outer conductor base body 11 is roundly pressed to form a sleeve structure with an oblong cross section, only the lower side of the outer conductor base body 11 forms a seam 18, and the four process grooves 22 are respectively located at the four corners of the outer conductor base body 11.

[0055] Since the folded part 15 is folded radially inward to the outer conductor base body 11, the outer conductor 19 has two layers of material at the folded part 15, so that the outer conductor 19 meets the function of adjusting the characteristic impedance while the structural strength of the outer conductor 19 is higher. Since the folded part 15 is provided with the process grooves 22 passing forward, the material of the folded part 15 with a smaller distribution diameter can deform and expand into the process grooves 22, thereby avoiding the accumulation of excess material, so that the folded part 15 can be roundly pressed to form a seam 18 on only one side of the outer conductor 19. The receiving grooves 12 on the outer conductor base body 11 are spaced apart along the circumference, and the folded part 15 has continuous material connection between the outer conductor base body 11 in the circumferential direction, so that the folded part 15 has good integrity with the outer conductor base body 11, the connection strength between the folded part 15 and the outer conductor base body 11 is higher, the outer conductor base body 11 can withstand higher tension, the possibility of the seam 18 on the folded part 15 opening is reduced, the cost is reduced, and the process is simplified.

[0056] Embodiment 2 of the outer conductor of the connector provided in the application:

[0057] The difference between this embodiment and embodiment 1 is that, in embodiment 1, the cross section of the outer conductor base 11 is long circular, and the process grooves 22 are located at the four corners of the long circle. In this embodiment, the process grooves 22 are located on the left and right sides of the outer conductor base 11. In other embodiments, the cross section of the outer conductor base 11 can be circular or rounded rectangular. It should be noted that the number of process grooves 22 can be changed according to actual needs and the shape of the outer conductor base 11.

[0058] Embodiment 3 of the outer conductor of the connector provided in the present application:

[0059] The difference between this embodiment and embodiment 1 is that, in embodiment 1, the outer peripheral surface of the outer conductor base 11 is provided with a front and rear extending accommodating groove 12, and the front end overhanging contact lug 13 is arranged in the accommodating groove 12, and the accommodating groove 12 is located between adjacent process grooves 22. In this embodiment, the process groove 22 is arranged on the folded part 15 corresponding to the front and rear of the accommodating groove 12, and the process groove 22 penetrates the end of the folded part 15 and communicates with the accommodating groove 12.

[0060] Embodiment 4 of the outer conductor of the connector provided in the present application:

[0061] The difference between this embodiment and embodiment 1 is that, in embodiment 1, the folded part 15 has a flange 16 located between the ends of the two adjacent process grooves 22, the accommodating groove 12 extends to the folded part and forms a forward notch 23 at the front end of the folded part, and the front ends of all contact lugs 13 are located in the notch 23. In this embodiment, part of the accommodating groove 12 has a certain distance from the front end surface of the outer conductor base 11 in the axial direction of the outer conductor base 11, so that the front end of the folded part is cancelled without the notch 23. In other embodiments, all accommodating grooves 12 can have a certain distance from the front end surface of the outer conductor base 11 in the axial direction of the outer conductor base 11, that is, all notches 23 at the front end of the folded part are cancelled. In other embodiments, the accommodating groove 12 can also extend and penetrate the end of the folded part.

[0062] Embodiment 5 of the outer conductor of the connector provided in the present application:

[0063] The difference between this embodiment and embodiment 1 is that, in embodiment 1, the front end surface of the folded part is located in front of the front end surface of the contact lug 13 located in the notch 23, which is used to protect the contact lug 13 from axial extrusion. In this embodiment, the front end surface of the protruding part 14 has a certain distance from the front end surface of the folded part 15, and a protective sleeve ring is arranged on the outer peripheral surface of the outer conductor base 11 at the front end of the accommodating groove 12, which extends along the circumference of the outer conductor base 11.

[0064] Embodiment 1 of the outer conductor forming method of the connector of the present application:

[0065] The outer conductor forming method of the connector in the present embodiment is the same as the forming method in Embodiment 1 of the outer conductor of the connector described above, and will not be specifically described here.

[0066] Embodiment 2 of the outer conductor forming method of the connector of the present application:

[0067] The difference between the present embodiment and Embodiment 1 is that in Embodiment 1, the cross section of the outer conductor base body 11 of the sleeve structure is oblong, and the process grooves 22 are located at the four corners of the oblong. In the present embodiment, the process grooves 22 are located on the left and right sides of the outer conductor base body 11. In other embodiments, the cross section of the outer conductor base body 11 can be circular or rounded rectangular. It should be noted that the number of process grooves 22 can be changed according to actual needs and the shape of the outer conductor base body 11.

[0068] Embodiment 3 of the outer conductor forming method of the connector of the present application:

[0069] The difference between the present embodiment and Embodiment 1 is that in Embodiment 1, the accommodation grooves 12 are located between adjacent process grooves 22. In the present embodiment, the process grooves 22 correspond to the accommodation grooves 12 front and back, the front end of the process groove 22 penetrates through the front end of the plate-shaped outer conductor base body 11, and the rear end of the process groove 22 communicates with the accommodation groove 12.

[0070] The above is only the preferred embodiment of the present application, and does not limit the present application, the patent protection scope of the present application is subject to the claims, any equivalent structural changes made by applying the contents of the specification and drawings of the present application should also be included in the protection scope of the present application.

Claims

1. An outer conductor of a connector, comprising a stamp-formed outer conductor base body (11), the outer conductor base body (11) being of a sleeve body structure, a front end of the outer conductor base body (11) being provided with a reduced diameter structure of a reduced radial dimension, the reduced diameter structure being for matching an impedance of the connector; characterized in that, The front end of the outer conductor substrate (11) is provided with a folded portion (15) that folds inward and has its end facing backward. The folded portion (15) forms the variable diameter structure. A process groove (22) is provided on the folded portion (15) that passes through the end of the folded portion (15) to adapt to the rounding stamping process and form a seam opening (18) on one side of the outer conductor substrate (11). A receiving groove (12) extending back and forth is provided on the outer peripheral surface of the outer conductor substrate. A contact lug (13) with its front end overhang is provided in the receiving groove. The receiving groove extends to the folded portion and forms a forward-facing notch (23) at the front end of the folded portion. The front end of at least one contact lug is located in the notch.

2. The outer conductor of the connector according to claim 1, wherein The cross-section of the outer conductor substrate (11) is oblong, and the process groove (22) is located at the four corners of the oblong.

3. The outer conductor of a connector according to claim 1 or 2, characterized in that The receiving tank (12) is located between adjacent process tanks (22).

4. The outer conductor of the connector according to claim 3, wherein The folded portion (15) has a flange (16) located between the ends of two adjacent process tanks (22).

5. The outer conductor of the connector according to claim 4, characterized in that, The front end face of the folded portion (15) is located in front of the front end face of the contact lug (13) inside the notch (23), and is used to protect the contact lug (13) from axial compression.

6. The outer conductor of the connector according to claim 4, characterized in that, The flange (16) causes the end of the receiving groove (12) to form a blind end.

7. The outer conductor of the connector according to claim 4, characterized in that, The folded portion (15) also has a rounded corner (17) with a circular cross-section, and the rounded corner (17) connects the front end face of the outer conductor substrate (11) with the fold (16).

8. A method for forming the outer conductor of a connector as described in any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Process groove (22) through the front end face is machined on the surface of the outer conductor substrate (11) of the plate type. Step 2: Fold the front end of the plate-shaped outer conductor substrate (11) inward until the end extends backward, and process the folded part (15) at the front end of the plate-shaped outer conductor substrate (11). Step 3: The outer conductor substrate (11) of the plate shape is rounded and stamped to form the outer conductor substrate (11) of the set structure. A joint (18) is formed on one side of the outer conductor substrate (11).

9. The method for forming the outer conductor of a connector according to claim 8, characterized in that, The outer conductor substrate (11) of the set structure has an elongated oval cross section, and the process groove (22) is located at the four corners of the elongated oval.

10. The method for forming the outer conductor of a connector according to claim 8 or 9, characterized in that, In step one, the outer conductor substrate (11) of the plate type is also processed with a front-to-back extending receiving groove (12). The receiving groove (12) is provided with a front-end overhanging contact lug (13). The receiving groove (12) is located between adjacent process grooves (22).

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