Electrical Connectors

Abstract

To provide an electric connector comprising a first metal shell, a second metal shell, an insulation seat, and a conductive material.SOLUTION: A first metal shell has a cylindrical upper end and is provided with a first fixed flange horizontally extending at its lower end. The second metal shell is replaceably fixed below the first metal shell and has: a second fixed flange horizontally extending at its upper end; and a relay part connected to the second fixed flange and extending downward. A conductive material is fixed to an insulation seat, and has a pitch kept away from the first metal shell and the second metal shell. The insulation seat is housed inside the first metal shell or the second metal shell. The first fixed flange and the second fixed flange closely abut on and are fixed to each other. An upper end of the conductive material protrudes and extends upward into a path inside the first metal shell and a lower end of the conductive material protrudes and extends downward into a path inside the relay part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to the field of electrical connectors, and more particularly to electrical connectors that can be easily adapted to the application needs of different products of customers.

[0002] China Patent Publication No. 112290294 discloses a coaxial connector with a floating mechanism. The coaxial connector includes a plug and a socket, and the plug includes a plug-side shell body, a central contact disposed in the center of the plug-side shell body, and a plug-side insulator disposed at the upper end of the plug-side shell body, and the plug-side insulator is used to butt with a connector of an external electric device. The plug-side shell body mainly includes two parts, namely, a shell body main body and a movable shell body supported swingably at the lower part of the shell body main body, and a restricting cover part is disposed on the outside of the shell body main body, and the restricting cover part has an annular groove opening downward, and the base end of the movable shell body is inserted into the annular groove and fixed to the restricting cover part, and the other part of the movable shell body other than the base end can swing around the base end, thereby realizing a floating connection between the movable shell body and the socket.

[0003] In this embodiment, the plug-side insulator at the top of the plug can only fit a specific size of external connector, and the movable shell at the bottom of the plug can only fit a specific size of socket. However, the base end of the movable shell of this coaxial connector is fitted to the outside of the shell body and fitted to the inside of the regulating cover, and the base end is fixed to the outer circumferential surface of the shell body by a method such as crimping, so that the plug and the movable shell of this fitting structure can only be assembled in a one-to-one correspondence, which is difficult to replace and has no design flexibility. However, in actual applications, the external connector has different interfaces, and the socket also has different sizes and interfaces, and many combination situations arise due to the permutation and combination of the two, so manufacturers need to develop and design corresponding molds according to various specific combination interfaces to produce electrical connectors that fit them, which makes the production line complicated and requires a huge production investment. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an electrical connector that can simplify the production process and can be easily adapted to the application needs of different products of customers.

[0005] According to one aspect of the present invention, the present invention provides a method for producing a cellular membrane comprising: a first metal shell having a cylindrical upper end and a first fixing flange extending horizontally from a lower end; a second metal shell that is displaceably fixed below the first metal shell, has a second fixing flange that extends horizontally at an upper end, and has a relay portion that is connected to the second fixing flange and extends downward; an insulating seat housed in the first metal shell or the second metal shell; a conductive material fixed to the insulating seat and having a pitch maintained from the first metal shell and the second metal shell; The electrical connector provides an electrical connector in which the first fixing flange and the second fixing flange are fixed together in close contact with each other, a hollow passage is formed inside the first metal shell and the second metal shell, the insulating seat is accommodated in the passage, and the conductive material has an upper end that protrudes upward into the passage in the first metal shell and a lower end that protrudes downward into the passage in the second metal shell.

[0006] In one embodiment, the first fixing flange and the second fixing flange are fixed to each other by a connecting member that fits together.

[0007] In one embodiment, the connecting member comprises a plurality of pairs of interfitting fixing protrusions and fixing holes, the fixing protrusions and the fixing holes being provided on the first fixing flange and the second fixing flange, respectively.

[0008] In one embodiment, the fixing protrusions and the fixing holes are coupled together by crimping or welding.

[0009] In one embodiment, the second metal shell comprises a main shield cover and a main shield cover fixing material for fixing the main shield cover, the main shield cover fixing material comprising a cylindrical fixing ring whose upper end expands outward to form the second fixing flange, and the main shield cover is fitted onto the outer wall of the fixing ring.

[0010] In one embodiment, the main shield cover is cylindrical with a plurality of slits extending axially to the lower end of the main shield cover, the slits being distributed at intervals along the circumferential direction of the main shield cover, and a floating elastic arm being formed between two adjacent slits.

[0011] In one embodiment, the main shield cover is a variable diameter tube having a straight tube joint and a tapered tube joint whose diameter gradually decreases as it extends downward from the straight tube joint, the straight tube joint is fitted into the fixed ring, and the variable diameter tube further has a butt guide portion whose diameter gradually increases as it extends downward from the tapered tube joint, and the slit extends from the butt guide portion to the straight tube joint but does not cut the straight tube joint.

[0012] In one embodiment, the first metal shell has a tubular butt portion connected to the first fixed flange, and the area between the connecting material of the first fixed flange and the butt portion forms a horizontal first diameter change adaptable area, the relay portion of the second metal shell is tubular, and the area between the connecting material of the second fixed flange and the relay portion forms a horizontal second diameter change adaptable area, and the first diameter change adaptable area and the second diameter change adaptable area are in tight contact with each other.

[0013] In one embodiment, the conductive material is a floating needle, and an auxiliary insulating shell body is installed within the main shield cover fixing material and spaced between the floating needle and the main shield cover fixing material, the lower end of the main shield cover fixing material has a flange extending into the passage, and the auxiliary insulating shell body is stored within a storage space formed by the fixing ring and the flange.

[0014] In one embodiment, the floating needle comprises a fixed contact and a floating contact that can move up and down relative to the fixed contact, an elastic material is provided between the fixed contact and the floating contact, and an elastic shaft sleeve is further fitted onto the outer periphery of the fixed contact, one end of the elastic shaft sleeve is connected to the fixed contact and the other end has a plurality of engaging claws that elastically contact the floating contact.

[0015] In one embodiment, the first metal shell is filled with a sealant in a passage adjacent the first fixing flange, the sealant being spaced between the conductive material and an inner wall of the first metal shell.

[0016] In one embodiment, the electrical connector further comprises a main mounting shell body and a shield shell disposed within the main mounting shell body, the first metal shell and the second metal shell are mounted within mounting passages of the main mounting shell body, and the shield shell is provided with a plurality of resilient contact arms that resiliently contact the second metal shell.

[0017] In one embodiment, the main mounting shell body comprises a first mounting shell body that accommodates the first metal shell and a second mounting shell body located below the first mounting shell body, a first accommodating cavity is provided within the first mounting shell body, a second accommodating cavity is provided within the second mounting shell body, an upper end of the first metal shell enters the first accommodating cavity, the shield shell is installed in the second accommodating cavity, a shield cavity body is formed within the shield shell, and a lower end of the second metal shell enters the shield cavity body.

[0018] In one embodiment, the shield shell has an opening communicating with the shield cavity body, the second metal shell extends downward into the opening, the elastic contact arm is provided on the edge of the opening, and a contact portion is formed at the end thereof, protruding and extending toward the center of the opening.

[0019] In one embodiment, the resilient contact arms extend either curved toward or away from the shield cavity body.

[0020] In one embodiment, the first mounting shell body is floatingly attached to the second mounting shell body, there is a floating gap between the first mounting shell body and the second mounting shell body, and the first metal shell and the second metal shell are fixed to the first mounting shell body.

[0021] In one embodiment, the first mounting shell body has a position control protrusion protruding outward in the radial direction on its outer periphery, and an insertion portion protruding downward is formed below the position control protrusion, the outer diameter of the insertion portion being smaller than the outer diameter of the position control protrusion, and an insertion hole into which the insertion portion is inserted is opened at the top of the second mounting shell body.

[0022] In one embodiment, an inwardly protruding flange is formed on the inner wall of the insertion hole, and a position control groove is formed by the difference in height between the flange and the top surface of the second mounting shell body, the position control protrusion is accommodated in the position control groove, and a first gap is present between the position control protrusion and the side wall of the position control groove, and a second gap is present between the insertion portion and the hole wall of the insertion hole.

[0023] In one embodiment, a stopper material is provided within the second accommodating cavity of the second mounting shell body, which is attached to the lower end of the insertion portion and abuts against the bottom of the insertion hole to prevent the first mounting shell body from escaping above the first mounting shell body.

[0024] In one embodiment, the first mounting shell body protrudes into the first accommodating cavity and extends downward to form a neck portion, the outer wall of the first metal shell is fitted into the neck portion, the portion of the first accommodating cavity above the neck portion forms an insertion groove, there is a gap between the outer wall of the first metal shell and the groove wall of the insertion groove, the portion of the first accommodating cavity below the neck portion forms an installation groove, and the first fixing flange and the second fixing flange are accommodated in the installation groove.

[0025] Compared with the prior art, the present invention has at least the following advantages:

[0026] The electrical connector of the present invention comprises a first metal shell and a second metal shell that are butted together, and the butt-fitting and fixing are realized by the first fixing flange and the second fixing flange that extend horizontally between the two. Therefore, no matter how the diameter and height of the first metal shell and the second metal shell change, the first fixing flange and the second fixing flange remain unchanged and can adapt to all changes to realize the butt-fitting. Therefore, during the production of the electrical connector, the manufacturer can only replace the first metal shell according to the different interface needs of the customer for the other butt connector above the electrical connector, or only replace the second metal shell according to the customer's needs for the insertion height or outer diameter of the socket below, thereby minimizing the changes in other parts, reducing the number of molds, simplifying the production process, realizing a high degree of sharing of the assembly production line, and reducing production investment. [Brief description of the drawings]

[0027] [Figure 1] FIG. 1 is a perspective view of a first embodiment of an electrical connector set of the present invention. [Diagram 2] FIG. 1 is a front view of a first embodiment of an electrical connector set of the present invention. [Diagram 3] 3 is a cross-sectional view taken along line AA in FIG. 2. [Figure 4] FIG. 2 is an exploded perspective view of the electrical connector set in FIG. 1; [Diagram 5] 4 is an exploded perspective view of the relay module and the socket in FIG. 3. [Figure 6] FIG. 4 is a perspective exploded view of one viewing angle of the relay module in FIG. 3; [Figure 7] 7 is an exploded perspective view of the relay module in FIG. 6 at another viewing angle. [Figure 8] FIG. 2 is a perspective view of a second embodiment of the electrical connector set of the present invention. [Figure 9] FIG. 2 is a plan view of a second embodiment of the electrical connector set of the present invention. [Figure 10] 10 is a cross-sectional view of FIG. 9 taken along line B-B. [Figure 11]FIG. 13 is a perspective view of a third embodiment of the electrical connector set of the present invention. [Figure 12] FIG. 13 is a plan view of a third embodiment of the electrical connector set of the present invention. [Figure 13] 13 is a cross-sectional view taken along CC in FIG. 12. [Figure 14] FIG. 12 is a perspective exploded view of the electrical connector set in FIG. [Figure 15] 15 is a perspective exploded view of one viewing angle of the relay module in FIG. 14. FIG. [Figure 16] 15 is a perspective exploded view of the relay module of FIG. 14 at another viewing angle. [Figure 17] 14 is an exploded perspective view of the first connector and the second connector in FIG. 13. FIG. [Figure 18] FIG. 14 is a perspective exploded view of the socket in FIG. 13. [Figure 19] FIG. 13 is a perspective view of a fourth embodiment of the electrical connector set of the present invention. [Figure 20] FIG. 13 is a plan view of a fourth embodiment of the electrical connector set of the present invention. [Figure 21] 21 is a cross-sectional view taken along the line DD in FIG. 20. [Figure 22] FIG. 20 is a perspective exploded view of the electrical connector set shown in FIG. 19. [Figure 23] 20A to 20C are perspective exploded views of the first mounting shell body, the second mounting shell body, and the shield cover in FIG. 19 at two different viewing angles. [Figure 24] 20A to 20C are perspective exploded views of the first mounting shell body, the second mounting shell body, and the shield cover in FIG. 19 at two different viewing angles. [Diagram 25] 22 is a perspective view of the relay module and the socket in FIG. 21 in a state where they are not butted together. FIG.

[0028] The symbols are explained as follows: 100···Electrical connector set, 1... Circuit board, 20... First electrical connector; 2 socket, 21 central terminal, 211 terminal base, 212 welded portion, 213 butt elastic piece, 22 base, 221 base body, 222 mounting hole, 223 side groove, 23 outer metal shell, 231 shell body, 232 elastic arm, 233 welded leg, 3 relay module, 31 first metal shell, 311 butt portion, 312 first fixing flange, 314 fixing protrusion, 315 first diameter change adaptable area, 32 second metal shell, 321 relay portion, 322 second fixing flange, 323 fixing hole, 324 guide portion, 325 second a diameter change adaptable area of ​​the insulating member, 33 a passageway, 34 a conductive material, 341 a fixing portion, 342 a first end, 343 a second end, 3411 a non-slip ridge, 35 a insulating seat, 351 a main body of the insulating seat, 352 a positioning groove, 353 a positioning post, 3531 a perforation, 36 a sealant, 37 a fixing adhesive body, 40... second electrical connector; 4... main mounting shell body, 41... second mounting shell body, 411... second receiving cavity, 412... fixing ring part, 413... fixing wall, 42... first mounting shell body, 421... first receiving cavity, 422... partition wall, 100a···Electrical connector set, 31a: first metal shell; 311a: butt joint; 312a: first fixing flange; 314a: fixing protrusion; 315a: first diameter change adapting region; 4a: main mounting shell body; 41a: second mounting shell body; 42a: first mounting shell body; 422a: partition wall; 100b···Electrical connector set, 2b... socket, 21b... central terminal, 211b... connection portion, 212b... butt piece, 213b... welding portion, 22b... base, 221b... terminal receiving hole, 23b... outer metal shell, 231b... shell body, 232b... through hole, 233b... welding leg, 3b relay module, 31b first metal shell, 311b butt portion, 312b first fixing flange, 3121b fixing protrusion, 32b second metal shell, 321b main shield cover, 3211b straight tube joint, 3212b tapered tube joint, 3213b butt guide portion, 3214b slit, 3215b elastic arm, 3216b welding hole, 322b main seal cover fixing material, 3221b... fixing ring, 3222b... second fixing flange, 3223b... fixing hole, 3224b... flange, 323b... auxiliary insulating shell body, 34b... conductive material, 341b... fixed contact, 342b... floating contact, 343b... elastic shaft sleeve, 3431b... engaging claw, 3432b... elastic contact finger, 344b... elastic material, 35b... insulating seat, 36b... sealant, 4b... main mounting shell body, 41b... second mounting shell body, 411b... second receiving cavity, 412b... shield shell, 4120b... shield cavity body, 4121b... side wall, 4122b... locking button, 4123b... elastic contact arm, 4124b... contact portion, 4125b... aperture, 4126b... top wall, 413b... positioning protrusion, 42b... first mounting shell body, 421b... first receiving cavity, 100c···Electrical connector set, 2c···Socket, 3c relay module, 31c first metal shell, 311c first fixing flange, 321c second fixing flange, 32c second metal shell, 34c conductive material, 35c insulating seat, 36c sealant, 4c...main mounting shell body, 41c...second mounting shell body, 411c...second receiving cavity, 412c...shield shell, 4120c...shield cavity body, 4123c...elastic contact arm, 4125c...opening, 413c...flange, 4130c...insertion hole, 4131c...position regulating groove, 42c...first mounting shell Well body, 421c...first accommodating cavity, 4211c...insertion groove, 4212c...mounting groove, 422c...position regulating protrusion, 423c...insertion portion, 4231c...mounting wall, 424c...neck portion, 425c...preventive member, 43c...first gap, 44c...second gap, 45c...bottom cover, 451c...bottom wall, 452c...side wall. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] While the present invention can easily be expressed in different forms of embodiment, what is shown in the drawings and described in detail in this specification are only some specific embodiments thereof, and at the same time, it will be understood that this specification should be considered as an illustrative explanation of the principles of the invention and is not intended to limit the invention to the specifics described herein.

[0030] Thus, a feature shown in this specification is intended to describe one feature of one embodiment of the present invention, and does not imply that each embodiment of the present invention must have the described feature. It should also be noted that many features are described in this specification. While some features may be combined together to illustrate possible system designs, these features may also be used in other, not expressly described, combinations. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0031] In the embodiments illustrated in the drawings, directional designations (e.g., up, down, left, right, front and back) are intended to interpret the structure and movement of the various elements of the invention as being relative, rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the positions of these elements is changed, these directional designations will change accordingly.

[0032] 1 to 25, which are four preferred embodiments of the electrical connector set of the present invention. The electrical connector sets 100, 100a, 100b, and 100c in the four preferred embodiments are suitable for connection between electronic devices or between an electronic device and an electric cable, and can realize signal transmission. The electronic device may be, for example, a wireless communication device, a drive recorder, a vehicle navigation device, a camera head, a vehicle audio device, or a vehicle operation panel.

[0033] Each of the electrical connector sets 100, 100a, 100b, 100c includes a circuit board, a socket to be attached to the circuit board, a relay module, and a main mounting shell body for mounting the relay module, one end of which is mated with a cable connector (not shown) of an external electronic device and the other end of which is mated with the socket.

[0034] Preferred embodiments of the present invention will now be described in more detail with reference to the drawings of this specification.

[0035] For ease of explanation, this document defines the end that abuts against the socket of the relay module as "bottom" and the end that is away from the socket of the relay module as "top."

[0036] 1 to 7, which show a first embodiment of an electrical connector set 100. The electrical connector set 100 includes a circuit board 1, a socket 2 attached to the circuit board 1, a relay module 3 inserted and fitted into the socket 2, and a main mounting shell body 4 to which the relay module 3 is attached.

[0037] 3, 4 and 5, the socket 2 is mounted on the circuit board 1 and electrically connected together with the circuit board 1, where the socket 2 forms a first electrical connector 20.

[0038] The socket 2 comprises a central terminal 21 , a base 22 to which the central terminal 21 is attached, and an outer metal shell 23 that covers the outside of the base 22 .

[0039] The central terminal 21 includes a terminal base 211 , two welded portions 212 , and two butt elastic pieces 213 .

[0040] The two welded parts 212 extend substantially horizontally, extend downward from opposite sides of the bottom of the terminal base 211 and then extend horizontally, and are used for electrical connection to the circuit board 1.

[0041] The two butt elastic pieces 213 extend upward integrally from the terminal base 211, and are arranged opposite each other, with a gap formed between them for inserting the relay module 3.

[0042] The base 22 is made of an insulating material and includes a base body 221. The base body 221 is generally cylindrical, and has an insertion hole 222 at its axial center, which penetrates both the upper and lower ends of the base body 221 in the axial direction. The central terminal 21 is inserted into the insertion hole 222 of the base body 221, and two welding parts 212 at the bottom of the central terminal 21 are exposed at the bottom end of the base body 221. A side groove 223 communicating with the insertion hole 222 is further formed on the bottom end surface of the base body 221, and the side groove 223 extends horizontally and is used to accommodate any one of the welding parts 212 of the central terminal 21.

[0043] The outer metal shell 23 is made of a conductive material and includes an annular shell body 231, a number of elastic arms 232 extending upward from the shell body 231, and two welding legs 233 provided on both sides of the bottom of the shell body 231. The elastic arms 232 are distributed at intervals along the circumferential direction of the shell body 231 and surround it in a cylindrical shape, and when the outer metal shell 23 is placed on the base 22, the elastic arms 232 surround the base body 221 of the base 22. The two welding legs 233 at the bottom end of the outer metal shell 23 are preferably used to connect to a ground line in the circuit board 1.

[0044] 4, 5, 6 and 7, the relay module 3 includes a first metal shell 31, a second metal shell 32, a conductive material 34, an insulator 35 and a sealant 36.

[0045] The first metal shell 31 has a hollow butt portion 311 and a horizontally extending first fixing flange 312 formed at the lower end of the butt portion 311. The upper end of the butt portion 311 is cylindrical and is used to fit and butt with an electrical connector in an external electrical device or equipment. The first fixing flange 312 is located at the lower end of the first metal shell 31 and is used to connect to the second metal shell 32.

[0046] The shape of the edge of the first fixing flange 312 is not limited, and may be annular as shown in Fig. 5, or may be rectangular or irregular as not shown. The first fixing flange 312 may be a complete annular structure surrounding the butt portion 311 in the circumferential direction, or may be a plurality of split-piece flanges extending horizontally and distributed in the circumferential direction of the cylinder, and each split-piece flange jointly constitutes the first fixing flange 312.

[0047] The first fixing flange 312 has a plurality of fixing protrusions 314 protruding downward, and the plurality of fixing protrusions 314 are distributed on the first fixing flange 312 along the circumference.

[0048] The second metal shell 32 is fixed below the first metal shell 31 and has a second fixing flange 322 extending horizontally at its upper end, and a relay portion 321 connected to the second fixing flange 322 and extending downward.

[0049] Intermediate portion 321 is used for fitting and connecting with socket 2. Intermediate portion 321 has a hollow cylindrical shape, an upper end of which is connected to second fixed flange 322, and a lower end of which has guide portion 324. Guide portion 324 forms a trumpet-shaped opening with a diameter that is increased from top to bottom so as to provide a guide for the two when the guide portion 324 is butted against socket 2.

[0050] The shape of the edge of the second fixing flange 322 is not limited, and may be annular, rectangular, or irregular. The second fixing flange 322 may be a complete annular structure surrounding the intermediate portion 321 in the circumferential direction, or may be a plurality of split-piece flanges distributed in the circumferential direction of the intermediate portion 321 and extending horizontally, and each split-piece flange collectively constitutes the second fixing flange 322.

[0051] The second fixing flange 322 is provided with a plurality of fixing holes 323, which are distributed around the second fixing flange 322 along a circumference and are fixed in one-to-one correspondence with the plurality of fixing protrusions 314 on the first fixing flange 312.

[0052] The second fixing flange 322 and the first fixing flange 312 are fixed by correspondingly fitting the fixing protrusions 314 and the fixing holes 323. The fixing protrusions 314 and the fixing holes 323 may be fixed by crimping, in which the fixing protrusions 314 are inserted into the fixing holes 323 first, and then the fixing protrusions 314 are deformed by a crimping and crushing process so as to be firmly pressed against the periphery of the fixing holes 323, so that the two are firmly joined together. The fixing protrusions 314 and the fixing holes 323 may be fixed to each other by a welding process.

[0053] A hollow passage 33 is formed inside the first metal shell 31 and the second metal shell 32 , and the passage 33 passes through the upper end of the first metal shell 31 and the lower end of the relay portion 321 .

[0054] The conductive material 34 is located within the passage 33, and the upper end of the conductive material 34 protrudes upward and extends to a position at the radial center of the passage 33 at the butt portion 311, and the lower end protrudes downward and extends to a position at the radial center of the passage 33 at the relay portion 321.

[0055] The conductive material 34 includes a fixing portion 341 located at the axial center, and a cylindrical first end 342 and a second end 343 extending from the fixing portion 341 to both ends. When the relay module 3 is butted against another cable connector in an external device, the first end 342 is butted against a central conductor of the external electrical connector and is used to realize signal transmission with the external device. When the relay module 3 is butted against the socket 2, the second end 343 can be inserted into the central terminal 21 of the socket 2 to realize signal transmission with the socket 2. The fixing portion 341 is further provided with a protruding anti-slip ridge 3411.

[0056] The insulating seat 35 is received in the passage 33 of the first metal shell 31 and fits snugly against the inner wall of the passage 33. A bore 3531 is drilled in the center of the insulating seat 35, and the conductive material 34 is fixed in the bore 3531 and is engaged with the insulating seat 35 by the anti-slip ridge 3411, thereby being firmly attached to the insulating seat 35. The insulating seat 35 is spaced between the conductive material 34 and the first metal shell 31, ensuring that a proper insulating pitch is maintained between the two.

[0057] The insulating seat 35 includes an insulating seat body 351, a cylindrical positioning post 353 is provided on the top of the insulating seat 35, and a positioning groove 352 is provided on the side of the insulating seat 35. When the relay module 3 is butted against an external connector, the positioning post 353 and the positioning groove 352 can provide a guide for butting the conductive material 34 against the external connector, so that the two can be butted against each other more accurately.

[0058] The sealant 36 is provided in the first metal shell 31 and is located below the insulating seat 35. After the conductive material 34 and the insulating seat 35 are inserted into the first metal shell 31, the sealant 36 is injected into the passage 33 from the opening at the lower end of the first metal shell 31, and after hardening, the sealant 36 is molded below the insulating seat 35. On the one hand, the sealant 36 is used to fix the conductive material 34 and the insulating seat 35 in the passage 33 of the first metal shell 31, and on the other hand, it also has the role of enhancing waterproofing.

[0059] 1 to 4, a relay module 3 is attached to an insulating main mounting shell body 4 to constitute a second electric connector 40. The ... connected to an insulating main mounting shell body 4. As shown in FIG.

[0060] The main mounting shell body 4 comprises a first mounting shell body 42 for mainly accommodating the first metal shell 31 and a second mounting shell body 41 for mainly accommodating the second metal shell 32, of which the first mounting shell body 42 and the second mounting shell body 41 in the embodiment shown in Figures 1 to 4 are integral.

[0061] The first mounting shell body 42 has a first housing cavity 421 that opens upward, and the upper end of the first metal shell 31 fits into the first housing cavity 421, with a certain gap between the first metal shell 31 and the cavity wall of the first housing cavity 421. A partition wall 422 is provided at the bottom of the first housing cavity 421, and the butt portion 311 of the first metal shell 31 passes through the partition wall 422 and is fixed to the first mounting shell body 42.

[0062] Within the second mounting shell body 41, there is a second accommodating cavity 411 that opens downward, and the lower end of the second metal shell 32 fits into the second accommodating cavity 411, and there is a certain distance between the second metal shell 32 and the cavity wall of the second accommodating cavity 411.

[0063] A fixing ring portion 412 protruding downward is provided on the top wall of the second accommodating cavity 411, and a mounting groove is formed in the fixing ring portion 412. The first fixing flange 312 and the second fixing flange 322 of the first metal shell 31 and the second metal shell 32 are accommodated in the mounting groove.

[0064] A horizontally extending fixing wall 413 is provided at the top of the mounting groove, and the first fixing flange 312 and the second fixing flange 322 are closely attached and fixed to the fixing wall 413. The mounting groove is filled with a fixing adhesive body 37, which on the one hand adheres and fixes the first fixing flange 312 and the second fixing flange 322 in the mounting groove, and on the other hand also serves the role of waterproofing.

[0065] When assembling the second electrical connector 40, first, the conductive material 34 and the insulating seat 35 are bonded together using an insert molding process, and then the conductive material 34 and the insulating seat 35 are inserted together into the first metal shell 31, and the sealant 36 is poured into the passage of the first metal shell 31. After that, the second fixing flange 322 of the second metal shell 32 is tightly attached to the first fixing flange 312 of the first metal shell 31, and at the same time, the fixing protrusion 314 is inserted into the fixing hole 323, and the two are fixed by welding or crimping, thereby forming a relay module. 3 is completed, and the relay module 3 is inserted into the main mounting shell body 4 from bottom to top, so that the first fixing flange 312 and the second fixing flange 322 of the relay module 3 abut against the fixing wall 413 of the second mounting shell body 41. At this time, the butt portion 311 of the first metal shell 31 is just engaged into the opening of the partition wall 422 of the first mounting shell body 42. Finally, the fixing adhesive body 37 is filled into the mounting groove of the second accommodating cavity 411, and the relay module 3 and the main mounting shell body 4 are fixed and sealed.

[0066] 3, when the electrical connector set 100 is used, the second electrical connector 40 is butted against the first electrical connector 20 so as to be removably inserted therein, and at this time, the socket 2 of the first electrical connector 20 is accommodated as a whole in the second accommodating cavity 411 of the second electrical connector 40, and the conductive material 34 of the second electrical connector 40 is inserted into the central terminal 21 of the first electrical connector 20, and the two butting elastic pieces 213 of the central terminal 21 clamp the conductive material 34 on both sides, thereby ensuring contact between the two and achieving highly efficient signal transmission. At the same time, the relay portion 321 of the second electrical connector 40 is also fitted into the outside of the outer metal shell 23 of the first electrical connector 20.

[0067] The shielding structure formed on the outer periphery of the conductive material 34 of the first metal shell 31 and the second metal shell 32 of the second electrical connector 40 provides an excellent shield for signal transmission of the conductive material 34, and by butting the outer metal shell 23 and the second metal shell 32 together, noise is filtered out and removed and transmitted to the circuit board 1, thereby improving the stability of the transmission signal of the conductive material 34.

[0068] In the second electrical connector 40, the second metal shell 32 is fixed below the first metal shell 31 in a replaceable manner during production. That is, various first metal shells 31 are assembled replaceably with a plurality of second metal shells 32 of different size standards, and similarly, various second metal shells 32 are assembled replaceably with a plurality of first metal shells 31 of different size standards. Since the first fixing flange 312 of the first metal shell 31 and the second fixing flange 322 of the second metal shell 32 are both horizontally extended, the first fixing flange 312 and the second fixing flange 322 can be butted together in an unchanging manner no matter how the diameter and height of the butt joint portion 311 and the relay portion 321 of the two change, and thus the second electrical connectors 40 of different model numbers and sizes can be permuted and combined.

[0069] Therefore, during production of the second electrical connector 40, the manufacturer may replace the first metal shell 31 while keeping the second metal shell 32 and the first electrical connector 20 in place according to the customer's various different interface needs for the upper end of the second electrical connector 40, such as FAKRA / HFA / Mate AX, etc. Depending on the customer's needs for the insertion height of the socket 2 and the outer diameter of the socket 2, the manufacturer may replace the second metal shell 32 while keeping the first metal shell 31 in place.

[0070] As can be seen from this, the present invention designs the relay module 3 of the second electrical connector 40 in a form in which two separable modules, the first metal shell 31 and the second metal shell 32, are combined and butted together, so that parts of them can be arbitrarily replaced according to different customer needs, and in this way, it is possible to realize changes in the connector model number, thereby minimizing changes in other parts and enabling a high degree of sharing of the assembly production line, ultimately achieving the purpose of reducing the number of molds and reducing production investment.

[0071] In addition, the second metal shell 32 being "replaceably" fixed below the first metal shell 31 only means that a specific model number of the second metal shell 32 is selected and paired with the first metal shell 31 during the model number selection process of production, and after the production of the electrical connector is completed, the second metal shell 32 and the first metal shell 31 are fixedly connected together, and any one of them cannot be replaced.

[0072] 6, a horizontal first diameter change accommodation region 315 is formed in the first fixing flange 312 of the first metal shell 31. The first diameter change accommodation region 315 is located in a region between the fixing protrusion 314 and the butt portion 311.

[0073] A horizontal second diameter change accommodation region 325 is formed in the second fixing flange 322 of the second metal shell 32. The second diameter change accommodation region 325 is located in a region between the fixing hole 323 and the butt portion 311.

[0074] Due to the existence of the first diameter change adapting region 315 and the second diameter change adapting region 325, no matter how the diameter of the butt portion 311 of the first metal shell 31 and the diameter of the intermediate portion 321 of the second metal shell 32 change within the maximum radial range of the adapting region, it does not affect the fixing protrusion 314 and the fixing hole 323. When the diameter of the butt portion 311 or the intermediate portion 321 changes, only the size of the area of ​​the first diameter change adapting region 315 or the second diameter change adapting region 325 changes accordingly, but the two can still be connected to each other in close contact with each other by the fixing protrusion 314 and the fixing hole 323.

[0075] In other words, due to the presence of the first diameter change adaptation region 315 and the second diameter change adaptation region 325, the fixing protrusion 314 of the first metal shell 31 of any model number and the fixing hole 323 of the second metal shell 32 of any model number are adapted to each other, thereby enabling quick combination and butting of different modules.

[0076] 8 to 10, they are an electrical connector set 100a according to a second embodiment of the present invention.

[0077] The electrical connector set 100a of the second embodiment also comprises a circuit board 1, a socket 2 attached to the circuit board 1, a relay module 3 inserted and fitted into the socket 2, and a main mounting shell body 4a on which the relay module 3 is attached.

[0078] Of these, the circuit board 1 and the socket 2 are both the same as those in the electrical connector set 100 of the first embodiment described above, and the second metal shell 32 in the relay module 3 is also the same as that in the electrical connector set 100 described above. The differences are that the diameter of the butt portion 311a of the first metal shell 31a and the butt interface of the main mounting shell body 4a are approximately different from those in the electrical connector set 100 described above.

[0079] Specifically, the relay module 3 of this embodiment also includes a first metal shell 31a, a second metal shell 32, a conductive material , an insulator 35, and a sealant .

[0080] The structures and connections between the second metal shell 32, the conductive material 34, the insulator 35 and the sealant 36 are all the same as those of the electrical connector set 100 of the first embodiment.

[0081] The diameter of the butt portion 311a of the first metal shell 31a in the second embodiment is smaller than the diameter of the butt portion 311 in the first embodiment, and the height of the butt portion 311a is greater than the height of the butt portion 311 in the first embodiment.

[0082] The main mounting shell body 4a of this embodiment also comprises an upper first mounting shell body 42a and a lower second mounting shell body 41a, the second mounting shell body 41a being the same as that of the first embodiment of the electrical connector set 100a described above, but the first mounting shell body 42a has a different butt interface from the first mounting shell body 42 of the first embodiment, and the opening of the partition wall 422a has a smaller diameter so that the butt portion 311a of the first metal shell 31a can be adapted for mounting.

[0083] Compared with the electrical connector set 100 of the first embodiment, in the second embodiment, by replacing the first metal shell 31a of the relay module 3 and combining it with the second metal shell 32 in the first embodiment, a relay module of a different model number can be configured to meet the customer's needs for different mating interfaces.

[0084] In the relay module of the second embodiment, the diameter and height of the butt portion 311a of the first metal shell 31a are changed, but the first fixing flange 312a of the first metal shell 31a and the second fixing flange 322 of the second metal shell 32 are both in a horizontally extended state, so that the two can still be closely attached to each other. Even if the diameter and height of the relay portion 311a are changed, only the size of the first diameter change adaptable area 315a of the first fixing flange 312a is changed, and the position of the fixing protrusion 314a on the first fixing flange 312a is still the same as the fixing protrusion 314 in the first embodiment, so that the first fixing flange 312a and the second fixing flange 322 can still achieve unobstructed butt by the fixing protrusion 314a and the fixing hole 323.

[0085] 11 to 18, which are a third embodiment of an electrical connector set 100b.

[0086] The electrical connector set 100b of this embodiment also includes a circuit board 1, a socket 2b attached to the circuit board 1, a relay module 3b inserted and fitted into the socket 2b, and a main mounting shell body 4b on which the relay module 3b is attached.

[0087] 13 and 18, the socket 2b is attached to the circuit board 1. As shown in FIG.

[0088] The socket 2b includes a central terminal 21b, a base 22b to which the central terminal 21b is attached, and an outer metal shell 23b that covers the outside of the base 22b.

[0089] The central terminal 21b includes a connection portion 211b extending in the up-down direction, a butt piece 212b connected to the upper end of the connection portion 211b, and a welding portion 213b connected to the lower end of the connection portion 211b. The butt piece 212b is a circular flat base formed by bending and extending horizontally from the upper end of the connection portion 211b, and is used to abut against the conductive material 34b of the relay module 3b to realize signal transmission. The welding portion 213b is formed by bending and extending the lower end of the connection portion 211b horizontally to facilitate connection with the circuit board 1.

[0090] The base 22b is made of an insulating material and is generally cylindrical. A terminal receiving hole 221b is formed in the axial center of the base 22b. The central terminal 21b is fixed in the terminal receiving hole 221b, and the butt piece 212b is exposed to the outside through an opening at the top of the base 22b, and the welded portion 213b of the central terminal 21b is exposed at the bottom of the base 22b.

[0091] The outer metal shell 23b is made of a conductive material and has a hollow cylindrical shell body 231b, with a through hole 232b at the top of the shell body 231b and two welding legs 233b at the bottom of the shell body 231b for butting against the circuit board 1.

[0092] The outer metal shell 23b is fitted onto the outside of the base 22b, the butt piece 212b of the central terminal 21b is exposed from a through hole 232b at the top of the shell body 231b, and the two welding legs 233b of the outer metal shell 23b are connected to the circuit board 1 offset from the welding portion 213b at the bottom end of the central terminal 21b.

[0093] 13, 15 and 16, a relay module 3b includes a first metal shell 31b, a second metal shell 32b, a conductive material 34b, an insulator 35b and a sealant 36b.

[0094] The structure of the first metal shell 31b is the same as that of the first metal shell 31 in the electrical connector set 100 of the first embodiment, and also includes a hollow cylindrical butt portion 311b and a horizontally extending first fixing flange 312b formed at the lower end of the butt portion 311b. The first fixing flange 312b is also provided with a plurality of fixing protrusions 3121b.

[0095] The second metal shell 32b is fixed below the first metal shell 31b. The second metal shell 32b includes a main shield cover 321b and a main shield cover fixing member 322b for fixing the main shield cover 321b.

[0096] The main shield cover 321b is cylindrical, and the cylindrical body has a plurality of slits 3214b extending along the axial direction to the lower end of the main shield cover 321b. The plurality of slits 3214b are distributed at intervals along the circumferential direction of the cylindrical body of the main shield cover 321b, and a floating elastic arm 3215b is formed between two adjacent slits 3214b.

[0097] The main shield cover 321b is a variable diameter tube having a straight tube section 3211b and a tapered tube section 3212b whose diameter gradually decreases as it extends downward from the straight tube section 3211b. At least a welding hole 3216b is formed at the upper end of the straight tube section 3211b. The variable diameter tube further has a butt guide section 3213b whose diameter extends downward from the tapered tube section 3212b and whose diameter is approximately wider outward, and the butt guide section 3213b is used to guide the butt to the socket 2b.

[0098] The slit 3214b extends from the butt guide portion 3213b to the straight tube joint 3211b but does not cut the straight tube joint 3211b, so that the elastic arm 3215b has enhanced flexibility and better floating freedom. The size of the tapered tube joint 3212b along the axial direction is not smaller than 1 / 3 of the size of the main shield cover 321b along the axial direction, so that the elastic arm 3215b has enhanced elastic recovery force and is stably butted against the socket 2b.

[0099] The main shield cover fixing member 322b includes a cylindrical fixing ring 3221b and a horizontally extending second fixing flange 3222b formed on the upper end of the fixing ring 3221b. The second fixing flange 3222b is provided with a plurality of fixing holes 3223b for realizing a fitting connection with the fixing protrusions 3121b of the first fixing flange 312b.

[0100] The bottom of the fixing ring 3221b further has a horizontal flange 3224b, the inner wall of which and the inner wall of the fixing ring 3221b jointly form a storage space, in which an annular auxiliary insulating shell body 323b is accommodated.

[0101] The straight tube joint 3211b of the main shield cover 321b is fitted to the outer wall of the fixing ring 3221b, and the two can be connected by spot welding with a laser at the welding hole 3216b at the upper end of the straight tube joint 3211b. The main shield cover 321b and the fixing ring 3221b together form the relay part of the relay module 3b, and when the relay module 3b is butted against the socket 2b, the elastic arm 3215b of the relay module 3b can swing left and right about the straight tube joint 3211b fitted to the outside of the fixing ring 3221b as a base point, and a floating butt is realized with the socket 2b.

[0102] The conductive material 34b is attached to the radial center of the first metal shell 31b and the second metal shell 32b. The conductive material 34b is a floating needle, and includes a fixed contact 341b and a floating contact 342b that are at least partially coaxially fitted together and are movable up and down relative to the fixed contact 341b. An elastic material 344b (in this embodiment, the elastic material 344b is a spring) is provided between the fixed contact 341b and the floating contact 342b.

[0103] An elastic shaft sleeve 343b is fitted around the outer periphery of the fixed contact 341b, one end of the elastic shaft sleeve 343b is fixedly connected to the fixed contact 341b, and the other end is formed with a plurality of engagement claws 3431b that elastically contact the floating contact 342b, and the free end of the engagement claws 3431b is curved toward the floating contact 342b to form elastic contact fingers 3432b. The elastic contact fingers 3432b contact the floating contact 342b to form auxiliary contacts, thereby improving the transmission performance of high frequency signals of the floating needle.

[0104] The conductive material 34b is fixed in the first metal shell 31b by the insulating seat 35b and the sealant 36b, and the floating contact 342b of the conductive material 34b is inserted into the second metal shell 32b. An auxiliary insulating shell body 323b in the second metal shell 32b is spaced between the floating contact 342b of the conductive material 34b and the main shield cover fixing member 322b to prevent inappropriate contact between the conductive material 34b and the main shield cover 321b.

[0105] When assembling the relay module 3b, first the conductive material 34b is attached to the insulating seat 35b, and then the conductive material 34b and the insulating seat 35b are inserted together into the first metal shell 31b. Thereafter, the first fixing flange 312b of the first metal shell 31b and the second fixing flange 322b of the second metal shell 32b are brought into close contact with each other. Finally, the fixing protrusion 3121b and the fixing hole 3223b are crimped and crushed to connect them, thereby completing the assembly of the relay module 3b.

[0106] 13, 14 and 17, the relay module 3b is attached to the main mounting shell body 4b and forms a second electrical connector.

[0107] The main mounting shell body 4b comprises a first mounting shell body 42b for mainly accommodating the first metal shell 31b, a second mounting shell body 41b for mainly accommodating the second metal shell 32b, and a shield shell 412b accommodated within the second mounting shell body 41b.

[0108] Within the first mounting shell body 42b is a first receiving cavity 421b, and within the second mounting shell body 41b is a second receiving cavity 411b.

[0109] The shield shell 412b is fitted in the second receiving cavity 411b, and the shape of the shield shell 412b is adapted to the second receiving cavity 411b. In this embodiment, since the second receiving cavity 411b is rectangular, the shield shell 412b is also substantially rectangular. The main body of the shield shell 412b is a rectangular box-shaped structure surrounded by four side walls 4121b and a top wall 4126b. The side walls 4121b are provided with protruding locking buttons 4122b that are engaged with locking grooves in the inner walls of the second receiving cavity 411b. The second receiving cavity 411b is further provided with positioning protrusions 413b that abut against the top wall 4126b of the shield shell 412b to provide positioning for mounting the shield shell 412b.

[0110] A shield cavity body 4120b is enclosed within the shield shell 412b, and an opening 4125b communicating with the shield cavity body 4120b is provided in a top wall 4126b of the shield shell 412b. A plurality of resilient contact arms 4123b are provided on the periphery of the opening 4125b. The plurality of resilient contact arms 4123b curve and extend outward away from the shield cavity body 4120b. A contact portion 4124b protruding toward the center of the opening 4125b is formed at the end of the resilient contact arm 4123b.

[0111] When the relay module 3b is mounted on the main mounting shell body 4b, the upper end of the first metal shell 31b of the relay module 3b enters the first accommodating cavity 421b, and there is a gap between the first metal shell 31 and the cavity wall of the first accommodating cavity 421. The second metal shell 32b of the relay module 3b enters the second accommodating cavity 411b, and the second metal shell 32b passes through the second accommodating cavity 411b and enters the shield cavity body 4120b of the shield shell 412b, and the multiple elastic contact arms 4123b of the shield shell 412b are elastically pressed against the main shield cover 321b of the second metal shell 32b.

[0112] The shield shell 412b elastically and firmly presses the main shield cover 321b by the contact portion 4124b of the elastic contact arm 4123b, and forms a reliable contact therewith, so that the second metal shell 32b can realize a primary grounding by the contact between the main shield cover 321b and the shield shell 412b on the one hand, and can further realize a secondary grounding by the contact between the tapered cylindrical joint 3212b at the lower end of the main shield cover 321b and the outer metal shell 23b of the socket 2b on the other hand. This improves the overall grounding performance of the electrical connector set 100b, and the second metal shell 32b and the shield shell 412b together form a two-layer shield for the conductive material 34b, improving the electromagnetic interference and noise interference that occur during the transmission of high-frequency signals, and improving the transmission performance of transmitting high-frequency signals.

[0113] In this embodiment, the conductive material 34b of the relay module 3b is a floating needle, and the lower end of the main shield cover 321b of the second metal shell 32b is a floating elastic arm 3215b. Therefore, even if the relay module 3b and the socket 2b are misaligned in the axial and radial directions due to manufacturing assembly tolerances, the floating structure of the conductive material 34b and the elastic arm 3215b allows the relay module 3b to still smoothly butt up against the socket 2b, ensuring a reliable connection between the two.

[0114] The shield shell 412b, on the one hand, improves the grounding performance of the relay module 3b and the socket 2b, and on the other hand, restrains the relay module 3b so that it cannot swing freely, and stably butts the relay module 3b and the socket 2b together.

[0115] 19 to 25, which are a fourth embodiment of an electrical connector set 100c.

[0116] The electrical connector set 100c of this embodiment also includes a circuit board 1, a socket 2c attached to the circuit board 1, a relay module 3c inserted and fitted into the socket 2c, and a main mounting shell body 4c on which the relay module 3c is attached.

[0117] The socket 2c constitutes a first electrical connector. The relay module 3c is attached to the main mounting shell body 4c and constitutes a second electrical connector.

[0118] 25, the structure of the socket 2c is the same as that of the socket 2 in the electrical connector set 100 of the first embodiment, and the specific structure of the socket 2c can be referred to in the electrical connector set 100 of the first embodiment, and will not be described again here. The structure of the relay module 3c is also the same as that of the relay module 3 in the electrical connector set 100 of the first embodiment, and it also includes a first metal shell 31c, a second metal shell 32c, a conductive material 34c, an insulating seat 35c, and a sealant 36c. The specific structures of the first metal shell 31c, the second metal shell 32c, the conductive material 34c, the insulating seat 35c, and the sealant 36c, and the connection relationship between them, can be referred to in the structure of the relay module 3 in the electrical connector set 100 of the first embodiment, and will not be described again here.

[0119] 21 to 24, the main mounting shell body 4c of this embodiment includes a first mounting shell body 42c and a second mounting shell body 41c that are floating connected to each other.

[0120] A first accommodating cavity 421c is provided within the first mounting shell body 42c, and a position control protrusion 422c protruding outward in the radial direction is provided on the outer periphery of the first mounting shell body 42c. A downwardly protruding insertion portion 423c is formed below the position control protrusion 422c, and the outer diameter of the insertion portion 423c is smaller than the outer diameter of the position control protrusion 422c.

[0121] The first mounting shell body 42c protrudes and extends into the first accommodating cavity 421c to form a neck portion 424c, an insertion groove 4211c is formed in an upper portion of the neck portion 424c, and a mounting groove 4212c is formed in a lower portion of the neck portion 424c.

[0122] The relay module 3c is attached to the first mounting shell body 42c, and the upper end of the first metal shell 31c fits into the first receiving cavity 421c. The outer wall of the first metal shell 31c is tightly fitted into the neck portion 424c, and there is a gap between the portion of the first metal shell 31c that fits into the insertion groove 4211c and the groove wall of the insertion groove 4211c. The first fixing flange 311c and the second fixing flange 321c are received in the mounting groove 4212c, and the mounting groove 4212c has a mounting wall 4231c that extends horizontally, and the first fixing flange 311c is in close contact with the mounting wall 4231c.

[0123] A second accommodating cavity 411c is present within the second mounting shell body 41c, and an insertion hole 4130c is opened at the top. An inwardly protruding flange 413c is formed on the inner wall of the insertion hole 4130c, and a position regulating groove 4131c is formed by the difference in height between the flange 413c and the top surface of the second mounting shell body 41c.

[0124] The first mounting shell body 42c is mounted in a floating manner in the insertion hole 4130c of the second mounting shell body 41c, and a floating gap exists between the first mounting shell body 42c and the second mounting shell body 41c.

[0125] Specifically, the position control protrusion 422c of the first mounting shell body 42c is accommodated in the position control groove 4131c of the second mounting shell body 41c, and a first gap 43c is present between the position control protrusion 422c and the side wall of the position control groove 4131c, and the insertion portion 423c of the first mounting shell body 42c is inserted into the insertion hole 4130c and a second gap 44c is present between the position control protrusion 422c and the hole wall of the insertion hole 4130c.

[0126] A pull-out prevention member 425c is provided in the second accommodating cavity 411c of the second mounting shell body 41c, and the pull-out prevention member 425c is fitted into the lower end of the insertion portion 423c of the first mounting shell body 42c. The pull-out prevention member 425c abuts against the lower side of the flange 413c of the second mounting shell body 41c, preventing the pull-out prevention member 425c from escaping upward from the insertion hole 4130c of the first mounting shell body 42c.

[0127] A shield shell 412c is further provided in the second receiving cavity 411c of the second mounting shell body 41c. The structure of the shield shell 412c is substantially the same as that of the shield shell 412 of the electrical connector set 100b, and also includes an opening 4125c at the top of the shield shell 412c, and a plurality of elastic contact arms 4123c are provided around the opening 4125c. The difference from the electrical connector set 100b is that the elastic contact arms 4123b in this embodiment are curved and extended toward the inside of the shield cavity body 4120c, which meets the needs of the socket 2c with a short insertion height.

[0128] In this embodiment, since the first mounting shell body 42c is attached in a floating manner to the second mounting shell body 41c, even if the relay module 3c has a non-floating structure, the relay module 3c is attached to the first mounting shell body 42c and can therefore float along the horizontal direction along with the first mounting shell body 42c, thereby achieving a floating connection between the relay module 3c and the socket 2c.

[0129] On the one hand, the shield shell 412c improves the grounding performance of the relay module 3c and the socket 2c, and on the other hand, it restrains the first mounting shell body 42c so that it cannot swing freely, thereby improving the stability of the butt joint between the relay module 3c and the socket 2c.

[0130] A bottom cover 45c is further provided on the bottom of the second mounting shell body 41c, and the bottom cover 45c includes a bottom wall 451c and side walls 452c provided around the bottom wall 451c. The bottom cover 45c is detachably connected to the first mounting shell body 42c by the side walls 452c. After the socket 2c is placed in the second receiving cavity 411c of the second mounting shell body 41c and abuts against the relay module 3c, the bottom cover 45c is closed to close the opening at the bottom of the second mounting shell body 41c, thereby achieving the purpose of waterproofing and dustproofing.

[0131] It is also necessary to explain the following:

[0132] In the above embodiments, the first and second fixing flanges are connected to each other by the fixing protrusions and the fixing holes, but the above description is merely illustrative and not limiting. In other embodiments, the positions of the fixing protrusions and the fixing holes may be interchanged, i.e., the fixing protrusions are provided on the second fixing flange, and the fixing holes are provided on the first fixing flange. In other embodiments, the first and second fixing flanges may be connected to each other by other methods, such as by clasping, welding, or adhesion.

[0133] In each of the above embodiments, the insulating seat is housed in a first metal shell, and in other embodiments, the insulating seat may be housed in a second metal shell.

[0134] In each of the above embodiments, the relay module is provided with one conductive material, and in other embodiments, the conductive material may be multiple, for example, two, four or six, and each conductive material is drilled into the insulating seat and housed in the internal passage formed by the first metal shell and the second metal shell together with the insulating seat.

[0135] The above embodiments of the electrical connector set have been described merely as examples, and the structures of the parts of the electrical connector set are not fixedly assembled together, and as long as there is no structural conflict between them, the structures of the parts in the multiple embodiments of the electrical connector set may be used in any combination.

[0136] The above content is merely a preferred embodiment of the present invention, and is not intended to limit the embodiment of the present invention. Those skilled in the art can very easily make corresponding changes or modifications according to the main concept and spirit of the present invention, so the protection scope of the present invention should be based on the protection scope claimed in the claims.

Claims

1. a first metal shell having a cylindrical upper end and a horizontally extending first fixing flange at a lower end, the first fixing flange being annular and extending around the cylindrical upper end like a ring; a second metal shell that is displaceably fixed below the first metal shell, has a second fixing flange extending horizontally at an upper end, the second fixing flange being annular and extending around the upper end like a ring, and has a relay portion that is connected to the second fixing flange and extends downward; an insulating seat housed within the first metal shell or the second metal shell; a conductive material fixed to the insulating seat and having a pitch maintained from the first metal shell and the second metal shell; the first fixing flange and the second fixing flange are fixed together in close contact with each other, a hollow passage is formed inside the first metal shell and the second metal shell, the insulating seat is accommodated in the passage, and the conductive material has an upper end that protrudes upward into the passage in the first metal shell and a lower end that protrudes downward into the passage in the second metal shell.

1. An electrical connector comprising:

2. The first fixing flange and the second fixing flange are fixed to each other by a connecting member that is fitted to each other.

2. The electrical connector according to claim 1.

3. The connecting member includes a plurality of pairs of mutually interfitting fixing protrusions and fixing holes, the fixing protrusions and the fixing holes being provided on the first fixing flange and the second fixing flange, respectively.

3. The electrical connector according to claim 2.

4. The fixing protrusion and the fixing hole are joined together by caulking or welding.

4. The electrical connector according to claim 3.

5. the second metal shell includes a main shield cover and a main shield cover fixing member for fixing the main shield cover, the main shield cover fixing member including a cylindrical fixing ring having an upper end that expands outward to form the second fixing flange, and the main shield cover is fitted onto an outer wall of the fixing ring.

2. The electrical connector according to claim 1.

6. The main shield cover has a cylindrical shape with a plurality of slits extending along the axial direction to the lower end of the main shield cover, the plurality of slits are distributed at intervals along the circumferential direction of the main shield cover, and a floating elastic arm is formed between two adjacent slits.

6. The electrical connector according to claim 5.

7. The main shield cover is a variable diameter tube having a straight tube joint and a tapered tube joint whose diameter gradually decreases downward from the straight tube joint, the straight tube joint is fitted into the fixed ring, the variable diameter tube further has a butt guide portion whose diameter gradually increases outward from the tapered tube joint, and the slit extends from the butt guide portion to the straight tube joint but does not cut the straight tube joint.

7. The electrical connector according to claim 6.

8. The first metal shell has a cylindrical butt portion connected to the first fixed flange, and a region between the connecting material of the first fixed flange and the butt portion forms a horizontal first diameter change adaptable region, the relay portion of the second metal shell has a cylindrical shape, and a region between the connecting material of the second fixed flange and the relay portion forms a horizontal second diameter change adaptable region, and the first diameter change adaptable region and the second diameter change adaptable region are in close contact with each other.

5. The electrical connector according to claim 2, wherein the electrical connector is a conductor.

9. A first metal shell having a cylindrical upper end and a first fixing flange extending horizontally from a lower end; a second metal shell that is displaceably fixed below the first metal shell, has a second fixing flange that extends horizontally at an upper end, and has a relay portion that is connected to the second fixing flange and extends downward; an insulating seat housed within the first metal shell or the second metal shell; a conductive material fixed to the insulating seat and having a pitch maintained from the first metal shell and the second metal shell; the first fixing flange and the second fixing flange are fixed together in close contact with each other, a hollow passage is formed inside the first metal shell and the second metal shell, the insulating seat is accommodated in the passage, and the conductive material has an upper end that protrudes upward into the passage in the first metal shell and a lower end that protrudes downward into the passage in the second metal shell, the second metal shell includes a main shield cover and a main shield cover fixing member for fixing the main shield cover, the main shield cover fixing member includes a cylindrical fixing ring having an upper end that expands outward to form the second fixing flange, the main shield cover is fitted onto an outer wall of the fixing ring, The conductive material is a floating needle, and an auxiliary insulating shell body is installed in the main shield cover fixing material and separated between the floating needle and the main shield cover fixing material, and a lower end of the main shield cover fixing material has a flange extending into the passage, and the auxiliary insulating shell body is stored in a storage space defined by the fixing ring and the flange.

1. An electrical connector comprising:

10. The floating needle comprises a fixed contact and a floating contact that can move up and down relative to the fixed contact, an elastic material is provided between the fixed contact and the floating contact, and an elastic shaft sleeve is further fitted around the outer periphery of the fixed contact, one end of the elastic shaft sleeve is connected to the fixed contact and the other end is formed with a plurality of engaging claws that elastically contact the floating contact.

10. The electrical connector of claim 9.

11. the first metal shell is filled with a sealant in a passage adjacent the first fixing flange, the sealant being spaced between the conductive material and an inner wall of the first metal shell; 2. The electrical connector according to claim 1.

12. The electrical connector further includes a main mounting shell body and a shield shell provided within the main mounting shell body, the first metal shell and the second metal shell are mounted within a mounting passage of the main mounting shell body, and the shield shell is provided with a plurality of elastic contact arms that elastically contact the second metal shell.

2. The electrical connector according to claim 1.

13. The main mounting shell body includes a first mounting shell body that accommodates the first metal shell and a second mounting shell body located below the first mounting shell body, the first mounting shell body has a first accommodation cavity, the second mounting shell body has a second accommodation cavity, an upper end of the first metal shell enters the first accommodation cavity, the shield shell is installed in the second accommodation cavity, a shield cavity body is formed in the shield shell, and a lower end of the second metal shell enters the shield cavity body.

13. The electrical connector of claim 12.

14. The shield shell has an opening communicating with the shield cavity body, the second metal shell extends downward into the opening, the elastic contact arm is provided on an edge of the opening, and a contact portion is formed at an end of the elastic contact arm, protruding and extending toward the center of the opening.

14. The electrical connector of claim 13.

15. the resilient contact arm extends in a curved manner toward or away from the shield cavity body; 15. The electrical connector of claim 14.

16. The first mounting shell body is attached to the second mounting shell body in a floating manner, and there is a floating gap between the first mounting shell body and the second mounting shell body, and the first metal shell and the second metal shell are fixed to the first mounting shell body.

14. The electrical connector of claim 13.

17. The first mounting shell body has a position restricting protrusion protruding outward in a radial direction on its outer periphery, and an insertion portion protruding downward is formed below the position restricting protrusion, and the outer diameter of the insertion portion is smaller than the outer diameter of the position restricting protrusion, and an insertion hole into which the insertion portion is inserted is formed at the top of the second mounting shell body.

17. The electrical connector of claim 16.

18. An inwardly protruding flange is formed on the inner wall of the insertion hole, and a position regulating groove is formed by a difference in height between the flange and the top surface of the second mounting shell body, the position regulating protrusion is accommodated in the position regulating groove, and a first gap is formed between the position regulating protrusion and a side wall of the position regulating groove, and a second gap is formed between the insertion portion and a hole wall of the insertion hole.

20. The electrical connector of claim 17.

19. the first mounting shell body protrudes into the first receiving cavity and extends downward to form a neck portion, an outer wall of the first metal shell is fitted into the neck portion, a portion of the first receiving cavity above the neck portion forms an insertion groove, there is a gap between the outer wall of the first metal shell and a groove wall of the insertion groove, a portion of the first receiving cavity below the neck portion forms an installation groove, and the first fixing flange and the second fixing flange are received in the installation groove.

14. The electrical connector of claim 13.

20. A first metal shell having a cylindrical upper end and a first fixing flange extending horizontally at a lower end, the first fixing flange having a plurality of fixing protrusions protruding downward; a second metal shell that is displaceably fixed below the first metal shell and has a second fixing flange extending horizontally at an upper end, the second fixing flange having a plurality of fixing holes configured to receive the fixing protrusions, and a relay portion that is connected to the second fixing flange and extends downward; an insulating seat housed within the first metal shell or the second metal shell; a conductive material fixed to the insulating seat and having a pitch maintained from the first metal shell and the second metal shell; the first fixing flange and the second fixing flange are fixed together in close contact with each other, a hollow passage is formed inside the first metal shell and the second metal shell, the insulating seat is accommodated in the passage, and the conductive material has an upper end that protrudes upward into the passage in the first metal shell and a lower end that protrudes downward into the passage in the second metal shell.

1. An electrical connector comprising:

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