Terminal module, ultramicro rectangular plug connector, ultramicro rectangular socket connector and ultramicro rectangular connector assembly

Abstract

The invention provides a terminal module, an ultramicro rectangular plug connector, an ultramicro rectangular socket connector and an ultramicro rectangular connector assembly, and belongs to the technical field of electric connection devices. The terminal module comprises a module insulator and a terminal fixed in the module insulator in an injection molding mode, the two ends of the terminal are exposed out of the module insulator to form a first connecting end and a second connecting end respectively, and the first connecting end is used for being connected with a printed board or a wire. The contact element comprises a sleeve section which sleeves and is fixed outside the second connecting end of the terminal, and also comprises a pin section which is used for being inserted into the contact element of the adaptive connector and is in contact conduction with the contact element or a jack section which is used for the contact element of the adaptive connector to be inserted and is in contact conduction with the contact element of the adaptive connector. According to the terminal module, the rigidity of the plug-in part on the terminal module is improved, and the plug-in performance is ensured by utilizing the plug pin section or the jack section of the contact element to be in plug-in fit with the contact element of the adaptive connector.

Description

Technical Field

[0001] The present invention relates to a terminal module, an ultra-micro rectangular plug connector, an ultra-micro rectangular socket connector and an ultra-micro rectangular connector assembly, belonging to the technical field of electrical connection devices. Background Art

[0002] Existing ultra-micro rectangular connectors feature 0.28mm stranded wire pins and sockets, which are machined and can connect to printed circuit boards or wires. The existing stranded wire pin molding process is complex, and each stranded wire pin and socket must be individually inserted into an insulator, making assembly extremely inconvenient due to their extremely small size. Furthermore, the structural limitations of the stranded wire pins and sockets make the connectors unable to meet the requirements of higher-speed transmission.

[0003] A Chinese invention patent application, publication number CN111969351A, discloses a reinforced, ultra-high-speed, high-density, and high-reliability connector. The connector comprises a plug and a socket. The plug includes several pin components, each comprising an insulator and a signal pin and a ground pin fixed to the insulator by injection molding. The signal pin and the ground pin each include a microstrip connection line located within the insulator. Both ends of the signal pin and the ground pin extend beyond the insulator, with one end being a fisheye (i.e., a first connection end) that can be connected to a printed circuit board, and the other end being an extruded round pin (i.e., a second connection end). The socket comprises a socket module, which includes a socket body and several sockets mounted thereon. The sockets include socket holes and elastic contacts mounted within the socket holes. When the plug and socket are mated, the extruded round pins engage the socket holes and make contact with the sockets through the elastic contacts.

[0004] The aforementioned connector forms a pin assembly (i.e., a terminal module) by injection molding multiple signal pins and ground pins (i.e., terminals) into an insulator. The terminal module is installed as a whole, facilitating assembly operations. Furthermore, the design of the microstrip cable (i.e., the strip) can increase communication speeds. If this type of terminal module is applied to an ultra-micro rectangular connector, the smaller diameter of the extruded round pins in the ultra-micro rectangular plug connector will result in insufficient rigidity, affecting mating performance with the mating connector. To increase transmission speeds, the ultra-micro rectangular socket connector also requires a terminal module of the same design as the plug connector. However, due to the extremely small size of the terminals, it is difficult to directly form a socket structure at the second connection end of the terminal.

[0005] In summary, when applying the existing terminal module to the ultra-micro rectangular connector, how to mate the second connecting end of the terminal with the adapter connector and ensure the mate performance is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a terminal module to solve the problem that when the existing terminal module is applied to an ultra-micro rectangular connector, the second connection end of the terminal cannot be plugged into the adapter connector with a suitable structure and ensure the plug-in performance; the purpose of the present invention is also to provide an ultra-micro rectangular plug connector, an ultra-micro rectangular socket connector and an ultra-micro rectangular connector assembly to solve the above problems.

[0007] To achieve the above objectives, the terminal module in the present invention adopts the following technical solutions: The terminal module includes a module insulator and a terminal injection-molded and fixed in the module insulator. The two ends of the terminal are exposed from the module insulator to form a first connection end and a second connection end. The first connection end is used to connect to a printed circuit board or a wire. The terminal module also includes a contact piece, which includes a sleeve section that is sleeved and fixed on the outside of the second connection end of the terminal. The contact piece also includes a pin section for inserting into the interior of the contact piece of the adapter connector and making contact with it, or a socket section for inserting the contact piece of the adapter connector and making contact with it.

[0008] The beneficial effects of the above technical solution are as follows: the present invention is an improved invention, which adds a contact member to an existing terminal module. The contact member includes a sleeve section that is mounted and fixed on the outside of the second connection end of the terminal to achieve fixation and electrical connection between the contact member and the second connection end of the terminal. The contact member also includes a pin section for inserting into and electrically connecting with the contact member of the adapter connector. This solution is applicable to ultra-micro rectangular plug connectors. Since a contact member is additionally fixed on the outside of the second connection end, the pin section of the contact member mates with the adapter connector, thereby improving the rigidity of the mating portion of the terminal module, thereby ensuring mating performance. Alternatively, the contact member also includes a socket section for inserting and electrically connecting with the contact member of the adapter connector. This solution is applicable to ultra-micro rectangular receptacle connectors. Since a contact member is additionally fixed on the outside of the second connection end, the socket section of the contact member mates with the adapter connector, thereby eliminating the need for directly forming a socket structure on the second connection end of the terminal. This improved solution not only facilitates the formation of the socket structure, but also ensures the rigidity of the mating portion of the terminal module, thereby ensuring mating performance.

[0009] Furthermore, the contact piece is provided with barbs for piercing the plug insulator or the socket insulator.

[0010] Furthermore, the terminal is provided with a stop shoulder for engaging with the end face of the sleeve section when the contact piece is fitted.

[0011] Furthermore, a plurality of terminals are arranged side by side in the module insulator, and a distance between the second connection ends of two adjacent terminals is smaller than a distance between the first connection ends.

[0012] Furthermore, there are multiple terminals arranged side by side in the module insulator, the first connection end and the second connection end of each terminal are arranged equidistantly, the length of the first connection end of each terminal, the length of the second connection end and the length of the contact connected to each second connection end are equal, and the ends of each contact are aligned.

[0013] Furthermore, the sleeve segment is fixed to the second connecting end by welding.

[0014] To achieve the above objectives, the ultra-micro rectangular plug connector of the present invention adopts the following technical solutions: An ultra-micro rectangular plug connector includes a plug insulator and a plug terminal module mounted on the plug insulator. The plug terminal module includes a module insulator and a terminal fixed by injection molding in the module insulator. The two ends of the terminal are exposed from the module insulator to form a first connection end and a second connection end. The first connection end is used to connect to a printed circuit board or a wire. The plug terminal module also includes a contact piece. The contact piece includes a sleeve section that is sleeved and fixed on the outside of the second connection end of the terminal. The contact piece also includes a pin section. The pin section is used to be inserted into the interior of the contact piece of the ultra-micro rectangular socket connector and make contact with it for conduction.

[0015] The beneficial effect of the above technical solution is that: the present invention is an improved invention creation, further defining the structure of the plug terminal module, which also includes a contact member, which includes a sleeve segment that is sleeved and fixed outside the second connection end of the terminal to achieve fixation and electrical connection between the contact member and the second connection end of the terminal. The contact member also includes a pin segment that is used to insert into and conduct electrical contact with the contact member of the ultra-micro rectangular socket connector. Since a contact member is additionally fixed outside the second connection end, the pin segment of the contact member is mated with the adapter connector through the mating portion, thereby improving the rigidity of the mating portion of the plug terminal module, thereby ensuring mating performance.

[0016] Furthermore, the contact piece is provided with barbs for piercing the plug insulator or the socket insulator.

[0017] Furthermore, the terminal is provided with a stop shoulder for engaging with the end face of the sleeve section when the contact piece is fitted.

[0018] Furthermore, a plurality of terminals are arranged side by side in the module insulator, and a distance between the second connection ends of two adjacent terminals is smaller than a distance between the first connection ends.

[0019] Furthermore, there are multiple terminals arranged side by side in the module insulator, the first connection end and the second connection end of each terminal are arranged equidistantly, the length of the first connection end of each terminal, the length of the second connection end and the length of the contact connected to each second connection end are equal, and the ends of each contact are aligned.

[0020] Furthermore, the sleeve segment is fixed to the second connecting end by welding.

[0021] To achieve the above objectives, the ultra-micro rectangular socket connector in the present invention adopts the following technical solutions: An ultra-micro rectangular socket connector includes a socket insulator and a socket terminal module mounted on the socket insulator. The socket terminal module includes a module insulator and a terminal fixed by injection molding in the module insulator. The two ends of the terminal are exposed from the module insulator to form a first connection end and a second connection end. The first connection end is used to connect to a printed circuit board or a wire. The socket terminal module also includes a contact piece. The contact piece includes a sleeve section that is sleeved and fixed on the outside of the second connection end of the terminal. The contact piece also includes a socket section. The socket section is used for the contact piece of the ultra-micro rectangular plug connector to be inserted into and contacted with it for conduction.

[0022] The beneficial effect of the above technical solution is that: the present invention is an improved invention creation, further limiting the structure of the socket terminal module, the socket terminal module also includes a contact member, the contact member includes a sleeve section that is sleeved and fixed on the outside of the second connection end of the terminal to achieve fixation and conduction between the contact member and the second connection end of the terminal. The contact member also includes a socket section, which is used to receive and conduct contact with the contact member of the ultra-micro rectangular plug connector. By adding and fixing a contact member on the outside of the second connection end, and mating with the adapter connector through the socket section of the contact member, the solution of directly forming a socket structure on the second connection end of the terminal is eliminated. The improved solution not only facilitates the formation of the socket structure, but also ensures the rigidity of the mating portion on the terminal module, thereby ensuring mating performance.

[0023] Furthermore, the contact piece is provided with barbs for piercing the plug insulator or the socket insulator.

[0024] Furthermore, the terminal is provided with a stop shoulder for engaging with the end face of the sleeve section when the contact piece is fitted.

[0025] Furthermore, a plurality of terminals are arranged side by side in the module insulator, and a distance between the second connection ends of two adjacent terminals is smaller than a distance between the first connection ends.

[0026] Furthermore, there are multiple terminals arranged side by side in the module insulator, the first connection end and the second connection end of each terminal are arranged equidistantly, the length of the first connection end of each terminal, the length of the second connection end and the length of the contact connected to each second connection end are equal, and the ends of each contact are aligned.

[0027] Furthermore, the sleeve segment is fixed to the second connecting end by welding.

[0028] To achieve the above objectives, the ultra-micro rectangular connector assembly of the present invention adopts the following technical solutions: An ultra-micro rectangular connector assembly includes an ultra-micro rectangular plug connector and an ultra-micro rectangular socket connector for use therewith. The ultra-micro rectangular plug connector includes a plug insulator and a plug terminal module mounted on the plug insulator. The ultra-micro rectangular socket connector includes a socket insulator and a socket terminal module mounted on the socket insulator. The plug terminal module and the socket terminal module respectively include a module insulator and a terminal injection-molded and fixed in the module insulator. The two ends of the terminal are respectively exposed from the module insulator to form a first connection end and a second connection end. The first connection end is used to connect to a printed circuit board or a wire. The plug terminal module and the socket terminal module respectively also include a contact piece. The contact piece includes a sleeve section that is sleeved and fixed on the outside of the second connection end of the terminal. The contact piece of the plug terminal module also includes a pin section that is used to be inserted into the interior of the contact piece of the ultra-micro rectangular socket connector and contact and conduct therewith. The contact piece of the socket terminal module also includes a jack section that is used for the contact piece of the ultra-micro rectangular plug connector to be inserted into and contact and conduct therewith.

[0029] The beneficial effect of the above technical solution is that: the present invention is an improved invention creation, further defining the ultra-micro rectangular plug connector and the ultra-micro rectangular socket connector, wherein the plug terminal module and the socket terminal module each further include a contact member, the contact member including a sleeve segment that is sleeved and fixed to the outside of the second connection end of the terminal, thereby achieving fixation and electrical connection between the contact member and the second connection end of the terminal. The contact member of the plug terminal module also includes a pin segment that is used to insert into the interior of the contact member of the ultra-micro rectangular socket connector and make contact and conduction therewith. Since a contact member is additionally fixed to the outside of the second connection end, the pin segment of the contact member is mated with the adapter connector, thereby improving the rigidity of the mating portion of the terminal module, thereby ensuring mating performance. The contact of the socket terminal module also includes a socket section, which is used for the contact of the ultra-micro rectangular plug connector to be inserted and contacted with it. By adding a fixed contact on the outside of the second connection end, the socket section of the contact is plugged into the adapter connector, thereby eliminating the scheme of directly forming a socket structure on the second connection end of the terminal. The improved scheme not only facilitates the molding of the socket structure, but also ensures the rigidity of the plug-in part on the terminal module, thereby ensuring the plug-in performance.

[0030] Furthermore, the contact piece is provided with barbs for piercing the plug insulator or the socket insulator.

[0031] Furthermore, the terminal is provided with a stop shoulder for engaging with the end face of the sleeve section when the contact piece is fitted.

[0032] Furthermore, a plurality of terminals are arranged side by side in the module insulator, and a distance between the second connection ends of two adjacent terminals is smaller than a distance between the first connection ends.

[0033] Furthermore, there are multiple terminals arranged side by side in the module insulator, the first connection end and the second connection end of each terminal are arranged equidistantly, the length of the first connection end of each terminal, the length of the second connection end and the length of the contact connected to each second connection end are equal, and the ends of each contact are aligned.

[0034] Furthermore, the sleeve segment is fixed to the second connecting end by welding.

[0035] Furthermore, the first connection end and the second connection end of the terminal in one of the ultra-micro rectangular plug connector and the ultra-micro rectangular socket connector extend in opposite directions, and the first connection end and the second connection end of the terminal in the other connector extend in perpendicular directions.

[0036] Furthermore, the extending directions of the first connecting ends and the second connecting ends of the terminals in the ultra-micro rectangular plug connector and the ultra-micro rectangular socket connector are both perpendicular. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a front view of the assembly of the ultra-micro rectangular plug connector and the ultra-micro rectangular receptacle connector in Example 1 of the ultra-micro rectangular connector assembly of the present invention; Figure 2 This is a side sectional view of the assembly of the ultra-micro rectangular plug connector and the ultra-micro rectangular receptacle connector in Example 1 of the ultra-micro rectangular connector assembly of the present invention; Figure 3 1. An exploded view of the ultra-micro rectangular plug connector and the ultra-micro rectangular receptacle connector in Example 1 of the ultra-micro rectangular connector assembly of the present invention; Figure 4 This is a three-dimensional diagram of the plug terminal module in Example 1 of the ultra-micro rectangular connector assembly of the present invention; Figure 5 This is a diagram showing the arrangement of the plug terminals of the plug terminal module in Example 1 of the ultra-micro rectangular connector assembly of the present invention; Figure 6 A perspective view of a plug contact of a plug terminal module in Example 1 of an ultra-micro rectangular connector assembly of the present invention; Figure 7 A perspective view of the socket terminal module in Example 1 of the ultra-micro rectangular connector assembly of the present invention; Figure 8 This is a diagram showing the arrangement of the socket terminals of the socket terminal module in Example 1 of the ultra-micro rectangular connector assembly of the present invention; Figure 9 A perspective view of a socket contact of a socket terminal module in Example 1 of an ultra-micro rectangular connector assembly of the present invention; Figure 10 A three-dimensional diagram of the positioning plate in Example 1 of the ultra-micro rectangular connector assembly of the present invention; Figure 11This is a side cutaway view of the assembly of the ultra-micro rectangular plug connector and the ultra-micro rectangular receptacle connector in Example 2 of the ultra-micro rectangular connector assembly of the present invention; Figure 12 This is a front view of the assembly of the ultra-micro rectangular plug connector and the ultra-micro rectangular receptacle connector in Example 2 of the ultra-micro rectangular connector assembly of the present invention; Figure 13 A perspective view of an ultra-micro rectangular socket connector in Example 3 of an ultra-micro rectangular connector assembly of the present invention; Figure 14 A side cross-sectional view of the ultra-micro rectangular socket connector in Example 3 of the ultra-micro rectangular connector assembly of the present invention; Figure 15 A perspective view of a straight socket terminal module in Example 3 of an ultra-micro rectangular connector assembly of the present invention; Figure 16 This is a three-dimensional diagram of the straight socket terminal module in Example 4 of the ultra-micro rectangular connector assembly of the present invention.

[0038] In the figure: 1. plug housing; 2. plug insulator; 3. plug module insulator; 3-1. snap-fit ​​protrusion; 4. plug terminal; 4-1. plug terminal pin; 4-2. plug terminal connecting pin; 4-3. plug terminal strip; 4-4. plug terminal shoulder; 5. plug contact; 5-1. plug contact sleeve section; 5-2. pin section; 5-3. plug contact barb; 6. guide pin; 7. fixing screw; 8. socket housing; 9. socket insulator; 10. socket module insulator; 10-1. first positioning protrusion; 10-2. second positioning protrusion; 11. socket terminal; 11-1. socket terminal pin; 11-2. socket terminal connecting pin; 11-3. socket terminal strip; 11-4. socket terminal shoulder; 12. socket contact; 12-1. Socket contact sleeve section; 12-2. Socket section; 12-3. Socket contact barb; 13. Positioning plate; 13-1. First plate body; 13-1-1. Positioning hole; 13-2. Second plate body; 13-2-1. Positioning groove; 14. Guide sleeve; 15. Pin; 16. Positioning column; 17. Socket inner shell; 18. Socket insulator; 19. Socket outer shell; 20. Bent terminal module; 21. Straight terminal module; 21-1. Socket module insulator; 21-2. Signal terminal; 21-2-1. Wire core welding plane; 21-3. Ground terminal; 21-3-1. Common ground welding plane; 21-4. Connecting structure; 21-5. Contact; 22. Wire; 23. Wire clamping plate; 24. Fastening screw; 25. Locking screw. DETAILED DESCRIPTION

[0039] In response to the technical problems existing in the prior art, the basic concept of the present invention is to fix a contact piece on the outside of the second connection end of the terminal. On the one hand, the additional contact piece is used to improve the rigidity of the plug-in part on the terminal module. On the other hand, the pin section or socket section of the contact piece is plugged into and matched with the contact piece of the adapter connector to ensure the plug-in performance.

[0040] The features and performance of the present invention are further described in detail below with reference to the embodiments.

[0041] Example 1 of the ultra-micro rectangular connector assembly of the present invention: like Figure 1 、 Figure 2 and Figure 3 As shown, the ultra-micro rectangular connector assembly includes an ultra-micro rectangular plug connector (hereinafter referred to as the plug connector) and a mating ultra-micro rectangular receptacle connector (hereinafter referred to as the receptacle connector). Both the plug connector and the receptacle connector in this embodiment are printed circuit board connectors used to connect printed circuit boards. The plug connector is a straight plug, while the receptacle connector is a curved receptacle. The plug connector includes a plug housing 1, a plug insulator 2 disposed within the plug housing 1, and multiple plug terminal modules mounted on the plug insulator 2. Each plug terminal module has the same structure.

[0042] Combine Figure 4 and Figure 5 As shown, the plug terminal module includes a plug module insulator 3 and plug terminals 4 injection-molded and fixed within the plug module insulator 3. In this embodiment, a single plug terminal module includes four plug terminals 4, meaning the plug terminal module is a four-core terminal module. Each plug terminal 4 is integrally formed using die stamping and includes a plug terminal strip 4-3 positioned within the plug module insulator 3. The strip routing ensures impedance continuity and improves communication speed. The two ends of the plug terminal 4, exposed from the plug module insulator 3, form a first connection end and a second connection end, respectively. The first connection end is a plug terminal pin 4-1 for connecting to the first printed circuit board, and the second connection end is an extruded round plug terminal connection pin 4-2.

[0043] The plug terminal module further includes a plug contact 5, which is manufactured by stamping and rolling. Figure 4 and Figure 6 As shown, the plug contact 5 includes a plug contact sleeve section 5-1 that is sleeved and fixed on the outside of the plug terminal connecting pin 4-2. The specific fixing method is to laser weld the overlapping parts of the plug terminal connecting pin 4-2 and the plug contact sleeve section 5-1 ( Figure 4The dotted-line area is soldering area A. The plug contact 5 also includes a pin segment 5-2, which is designed to insert into and establish contact with the receptacle connector's contact. Pin segment 5-2 is elastic and comprises multiple elastic bands arranged at intervals. Each elastic band is bulging outward. When inserted into the receptacle connector's contact, it elastically deforms to ensure reliable contact and conduction.

[0044] When manufacturing the plug terminal module, firstly, the plug terminal 4 is integrally encapsulated by injection molding to form an insulator component, and then the plug contact 5 is fixedly connected to the insulator component to form the plug terminal module. Figure 5 As shown, a plug terminal shoulder 4-4 is provided on the plug terminal 4 for engaging with the end face of the plug contact sleeve section 5-1 when the plug contact 5 is installed. The plug terminal shoulder 4-4 is also the end of the plug terminal strip body 4-3, and its end is just exposed outside the plug module insulator 3.

[0045] Furthermore, the spacing between the second connection ends of two adjacent plug terminals 4 is smaller than the spacing between the first connection ends. Specifically, the spacing between the plug terminal connection pins 4-2 is smaller than the spacing between the plug terminal pins 4-1. This variable spacing design from the mating end to the printed circuit board (PCB) ensures the mating end is as small as possible while meeting PCB wiring requirements. Furthermore, the plug terminal pins 4-1 and the plug terminal connection pins 4-2 extend in opposite directions, with the plug terminal connection pins 4-2 perpendicular to the first PCB to which the plug terminal pins 4-1 are connected.

[0046] The first and second connection ends of each plug terminal 4 are equidistantly spaced, meaning that the spacing between two adjacent plug terminal pins 4-1 is equal, and the spacing between two adjacent plug terminal connection pins 4-2 is also equal. Furthermore, the lengths of each plug terminal pin 4-1, each plug terminal connection pin 4-2, and each plug contact 5 are equal. The ends of each plug contact 5 are aligned, and one plug contact 5 forms a contact assembly with the corresponding plug terminal 4. The plug connector in this embodiment does not specify a differential pair arrangement; users can freely define it based on their specific needs. To ensure the highest transmission rate requirements, the following principle should be followed: if two adjacent contact assemblies in the same row form a differential pair, then the two contact assemblies directly opposite each other in the upper and lower rows, as well as the two adjacent contact assemblies on either side, should be ground signals.

[0047] When the plug terminal module is installed in the plug insulator 2, in order to ensure the stability of the installation, Figure 4 As shown, a snap-in protrusion 3-1 is provided on the plug module insulator 3, and a snap-in groove for the snap-in protrusion 3-1 to snap into is provided on the plug insulator 2. Figure 4 and Figure 6As shown, the plug contact 5 is provided with a plug contact barb 5 - 3 for piercing the plug insulator 2 to enhance the connection stability.

[0048] like Figures 1 to 3 As shown, the socket connector includes a socket housing 8, a socket insulator 9 disposed in the socket housing 8, and a plurality of socket terminal modules mounted on the socket insulator 9, each of which has the same structure. Figure 7 and Figure 8 As shown, the receptacle terminal module includes a receptacle module insulator 10 and receptacle terminals 11 injection-molded and fixed within the receptacle module insulator 10. Similarly, in this embodiment, a single receptacle terminal module includes four receptacle terminals 11, meaning the receptacle terminal module is a four-core terminal module. Each receptacle terminal 11 is integrally formed using die stamping and includes a receptacle terminal strip 11-3 located within the receptacle module insulator 10. The strip routing ensures impedance continuity and improves communication speed. The two ends of the receptacle terminal 11, respectively, emerge from the receptacle module insulator 10 to form a first connection end and a second connection end. The first connection end is a receptacle terminal pin 11-1 for connecting to a second printed circuit board, and the second connection end is a rounded receptacle terminal connection pin 11-2.

[0049] The socket terminal module further includes a socket contact 12, which is manufactured by stamping and rolling. Figure 7 and Figure 9 As shown, the socket contact 12 includes a socket contact sleeve section 12-1 that is sleeved and fixed on the outside of the socket terminal connecting pin 11-2. The specific fixing method is to laser weld the overlapping parts of the socket terminal connecting pin 11-2 and the socket contact sleeve section 12-1 ( Figure 7 The area selected by the dashed line is the welding area B). The socket contact 12 further includes a socket section 12-2. The socket section 12-2 is a rigid socket section for receiving the plug contact 5 of the plug connector and for contacting and conducting with the pin section 5-3 of the plug contact 5.

[0050] When manufacturing the socket terminal module, the socket terminal 11 is firstly encapsulated with plastic by injection molding to form an insulator component, and then the socket contact 12 is fixedly connected to the insulator component to form the socket terminal module. Figure 8 As shown, the socket terminal 11 is provided with a socket terminal shoulder 11-4 for engaging with the end face of the socket contact sleeve section 12-1 when the socket contact 12 is installed. The socket terminal shoulder 11-4 is also the end of the socket terminal strip 11-3, and its end is just exposed outside the socket module insulator 10.

[0051] The spacing between the second connection ends of two adjacent receptacle terminals 11 is smaller than the spacing between the first connection ends. Specifically, the spacing between the receptacle terminal connection pins 11-2 is smaller than the spacing between the receptacle terminal pins 11-1. The variable spacing between the mating end and the printed circuit board (PCB) end ensures the mating end is as small as possible while meeting PCB wiring requirements. Furthermore, the extension directions of the receptacle terminal pins 11-1 and the receptacle terminal connection pins 11-2 are perpendicular to each other. The receptacle terminal connection pins 11-2 are parallel to the second PCB connected to the receptacle terminal pins 11-1, and the second PCB is perpendicular to the first PCB.

[0052] The first and second connection ends of each socket terminal 11 are equidistantly spaced, meaning the spacing between two adjacent socket terminal pins 11-1 is equal, and the spacing between two adjacent socket terminal connection pins 11-2 is also equal. Furthermore, the lengths of each socket terminal pin 11-1, each socket terminal connection pin 11-2, and each socket contact 12 are equal. The ends of each socket contact 12 are aligned, and one socket contact 12 forms a contact assembly with the corresponding socket terminal 11. The socket connector also does not specify a differential pair arrangement; users can freely define it based on their specific needs. To ensure the highest transmission rate requirements, the following principle should be followed: if two adjacent contact assemblies in the same row form a differential pair, then the two contact assemblies directly opposite each other in the upper and lower rows, as well as the two adjacent contact assemblies on either side, should be ground signals.

[0053] When assembling the socket connector, each socket terminal module is first installed on the socket insulator 9. In order to ensure the stability of the installation, Figure 7 and Figure 9 As shown, the socket contact 12 is provided with a socket contact barb 12 - 3 for piercing the socket insulator 9 .

[0054] In addition, if Figure 3 and Figure 10 As shown, the socket connector also includes a positioning plate 13, which is L-shaped and includes a first plate body 13-1 and a second plate body 13-2 connected vertically. The first plate body 13-1 is provided with a plurality of positioning holes 13-1-1 at intervals, and the number of the positioning holes 13-1-1 is the same as the number of the socket terminal modules. The edge of the second plate body 13-2 is provided with a plurality of positioning grooves 13-2-1 at intervals, and the number of the positioning grooves 13-2-1 is also the same as the number of the socket terminal modules. Figure 7As shown, the side of the socket module insulator 10 facing away from the socket terminal pins 11-1 is provided with a first positioning protrusion 10-1, and the side of the socket module insulator 10 facing away from the socket terminal connecting pins 11-2 is provided with a second positioning protrusion 10-2. In other words, the two positioning protrusions are located on two perpendicular sides. When installing the positioning plate 13, the first plate body is assembled in a direction close to the first positioning protrusion 10-1 of each socket terminal module, so that each first positioning protrusion 10-1 is inserted into the corresponding positioning hole 13-1-1, and each second positioning protrusion 10-2 is snapped into the corresponding positioning groove 13-2-1, thereby achieving positioning and fixing of the multiple socket terminal modules.

[0055] Then, the socket insulator 9, each socket terminal module and the positioning plate 13 are installed together into the socket housing 8. Figure 3 As shown, after being installed in place, a positioning column 16 is installed between the socket insulator 9 and the socket housing 8 to achieve positioning between the entire assembly and the socket housing 8.

[0056] In addition, a guide sleeve 14 is mounted on the socket housing 8 via a pin 15, and a guide pin 6 is mounted on the plug housing 1. The guide pin 6 is connected to a fixing screw 7, which is used to fix the plug connector to the first printed circuit board. When the plug connector and the socket connector are plugged into each other, the guide pin 6 and the guide sleeve 14 cooperate to achieve positioning and guiding, thereby ensuring the plug-in performance.

[0057] In summary, the present invention improves the rigidity of the plug-in portion on the plug terminal module by adding a fixed plug contact to the outside of the plug terminal connecting pin, and at the same time improves the rigidity of the plug-in portion on the socket terminal module by adding a fixed socket contact to the outside of the socket terminal connecting pin, and the insulator components of the socket terminal module and the plug terminal module have the same structural form, and the terminals both include strips, which ensures the transmission rate. On this basis, the plug-in between the plug contact and the socket contact is used to realize the connection between the plug connector and the socket connector, thereby ensuring the plug-in performance.

[0058] Example 2 of the ultra-micro rectangular connector assembly of the present invention: like Figure 11 and Figure 12 As shown, this embodiment differs from Embodiment 1 in that the plug connector is a curved plug, and the plug terminal pin 4-1 of the plug terminal 4 is perpendicular to the extension direction of the plug terminal connecting pin. At the same time, the socket connector is a curved socket, and the socket terminal pin 11-1 of the socket terminal 11 is also perpendicular to the extension direction of the socket terminal connecting pin. In this case, the structure of the plug terminal module is the same as that of the socket terminal module, and the installation and positioning method of the terminal modules is also the same. The first printed circuit board connected to the plug terminal pin 4-1 and the second printed circuit board connected to the socket terminal pin 11-1 are coplanar.

[0059] Example 3 of the ultra-micro rectangular connector assembly of the present invention: The ultra-micro rectangular connector assembly in this embodiment also includes an ultra-micro rectangular plug connector (hereinafter referred to as the plug connector) and an ultra-micro rectangular socket connector (hereinafter referred to as the socket connector) used in conjunction with it. The difference from Examples 1 and 2 is that, first, the socket connector in this embodiment is a cable connector for connecting wires, and the plug connector can also be a cable connector for connecting wires, or a printed board connector for connecting a printed board.

[0060] like Figure 13 As shown, the socket connector includes a socket inner housing 17, a socket insulator 18 disposed in the socket inner housing 17, and a plurality of socket terminal modules mounted on the socket insulator 18. The specific forms of the socket inner housing 17, the socket insulator 18, and the socket terminal modules in this embodiment are different from those in Embodiments 1 and 2. Figure 14 As shown, there are four socket terminal modules, two of which are bent terminal modules 20 and the other two are straight terminal modules 21 . The two straight terminal modules 21 are arranged closely together, and the two bent terminal modules 20 are symmetrically arranged on both sides of the two straight terminal modules 21 .

[0061] like Figure 15 As shown, the straight terminal module 21 includes a module insulator 21-1 and terminals injection-molded and fixed in the module insulator 21-1. The terminals are integrally formed by mold stamping and include signal terminals 21-2 arranged in pairs to form a differential pair and ground terminals 21-3 located next to the differential pair. The ground terminals 21-3 are also arranged in pairs and a pair of ground terminals are connected by a connecting structure 21-4.

[0062] The signal terminal 21-2 and the ground terminal 21-3 both include a strip-shaped routing body to ensure impedance continuity. The two ends of the signal terminal 21-2 and the ground terminal 21-3 are exposed from the module insulator 21-1 to form a first connection end and a second connection end, respectively. The first connection ends of both terminals are sheet-like structures, and the first connection ends both have welding planes. Among them, the welding plane of the signal terminal 21-2 is a core welding plane 21-2-1 for welding and fixing the core of the wire 22 to achieve the connection between the terminal module and the wire 22. The welding plane of the ground terminal 21-3 is a common ground welding plane 21-3-1 for welding and fixing the common ground plate. At the same time, the common ground plate is also connected to the shielding layer of each wire, so that each ground terminal and each wire shielding layer can be connected to the common ground through the common ground plate, thereby improving the shielding effect. Among them, the wire core welding plane 21-2-1 can adapt to wires of various specifications, and because a pair of grounding terminals 21-3 are connected by a connecting structure 21-4, the connector can transmit high-speed differential signals, and the terminals can be welded with ultra-thin coaxial cables with better shielding effects.

[0063] The second connection ends of the signal terminals 21-2 and ground terminals 21-3 are both extruded round pins. The straight terminal module 21 also includes a contact 21-5, which consists of a sleeve segment that is welded over the extruded round pins and a receptacle segment that receives and connects the plug connector's contacts. The structure of the contact 21-5 is identical to the receptacle contact in Example 1, and therefore, it is equipped with barbs for piercing the receptacle insulator 18. Furthermore, the signal terminals 21-2 and ground terminals 21-3 are equipped with shoulder stops that engage the end faces of the sleeve segment when the contact 21-5 is inserted.

[0064] In this embodiment, the spacing between the second connection ends of two adjacent terminals is equal to the spacing between the first connection ends. At the same time, the length of the first connection end of each terminal, the length of the second connection end, and the length of the contact member connected to each second connection end are respectively equal, and the ends of each contact member are aligned.

[0065] The structure of the curved terminal module 20 is similar to that of the straight terminal module 21 , except that the terminals in the curved terminal module 20 have a bent portion and a Z-shaped cross section, while the terminals in the straight terminal module 21 extend in a straight line.

[0066] During the manufacturing of the receptacle terminal module of this embodiment, the terminals are first completely encapsulated with plastic through injection molding to form an insulator component. The contacts 21-5 are then fixedly connected to the insulator component to form the receptacle terminal module. Because the insulator component contains a ground signal, it can also be referred to as a high-speed differential insulator component. The terminal module is then connected to the conductors 22 to form a cable assembly.

[0067] When assembling the socket connector, Figure 13 and Figure 14 As shown, the various cable components are first installed onto the socket insulator 18. During installation, the barbs on the contacts 21-5 are interference-fitted with the mounting holes on the socket insulator 18, securing the cable components to the socket insulator 18. The socket insulator 18 and the various cable components are then installed into the socket inner housing 17. Finally, they are installed into the socket outer housing 19. Glue is poured at the rear of the socket outer housing 19 to secure the wires 22 and terminal modules to the socket outer housing 19. Finally, the wire clamping plate 23 is installed using screws 24 to bundle the wires 22.

[0068] The plug connector also includes a plug housing, a plug insulator disposed within the plug housing, and multiple plug terminal modules mounted on the plug insulator. If the plug connector is a cable connector, the plug terminal modules are used to connect wires and have the same structure as the receptacle terminal modules. If the plug connector is a printed circuit board connector, the plug terminal modules are used to connect to the printed circuit board and are similar to the plug terminal modules in Examples 1 and 2. When the plug connector and receptacle connector are mated, locking screws 25 secure the connection between the two connectors.

[0069] Example 4 of the ultra-micro rectangular connector assembly of the present invention: like Figure 16 As shown, the difference between this embodiment and embodiment 3 is that the terminals in the plug terminal module and the socket terminal module are independently set, that is, there are no grounding terminals and connecting structures, and all terminals are signal terminals 21-2. At this time, the welding plane of the terminal is used to weld ordinary wires to transmit low-frequency signals.

[0070] In other embodiments of the ultra-micro rectangular connector assembly: Unlike embodiments 1 and 2, the extension directions of the first connection ends and the second connection ends of the terminals in the ultra-micro rectangular plug connector and the ultra-micro rectangular socket connector are opposite, and the two printed circuit boards are parallel.

[0071] In other embodiments of the ultra-micro rectangular connector assembly: depending on specific transmission rate requirements, there may be only one ground terminal located next to the differential pair, rather than being arranged in pairs.

[0072] In other embodiments of the ultra-micro rectangular connector assembly: Different from embodiments 3 and 4, the first connecting end can be a rolled cylindrical structure, and the wire is inserted into the cylindrical structure for welding.

[0073] In other embodiments of the ultra-micro rectangular connector assembly: Unlike embodiments 3 and 4, the first connecting end can be a needle-shaped structure. In this case, another crimping barrel is sleeved on the outside of the first connecting end, and the wire is inserted into the crimping barrel, and the crimping barrel is crimped and fixed to the first connecting end and the wire.

[0074] In other embodiments of the ultra-micro rectangular connector assembly, the sleeve section of the contact and the second connecting end of the terminal may be fixed by crimping.

[0075] In other embodiments of the ultra-micro rectangular connector assembly: the ends of the contacts may not be aligned. For example, in a connector for transmitting high-speed signals, the terminal module includes a ground terminal and a signal terminal, and the end of the contact connected to the ground terminal protrudes from the contact connected to the signal terminal, that is, the lengths of the two contacts are not equal.

[0076] In other embodiments of the ultra-micro rectangular connector assembly: depending on specific requirements of the connector, the spacing between the second connection ends of two adjacent terminals may be equal to or greater than the spacing between the first connection ends.

[0077] In other embodiments of the ultra-micro rectangular connector assembly: a shoulder that cooperates with the end face of the sleeve section of the contact piece may not be provided on the terminal. For example, the strip of the plug terminal is located inside the insulator of the plug module or the end of the strip of the socket terminal is located inside the insulator of the socket module, and only the terminal connecting pin is exposed outside the module insulator. In this case, when the contact piece is fixed in the package, the position of the contact piece needs to be controlled.

[0078] In other embodiments of the ultra-micro rectangular connector assembly: the contacts may not be provided with barbs that penetrate the plug insulator or the socket insulator, but may be fixed to the plug insulator or the socket insulator by simply utilizing structures on the module insulator (such as snap-on protrusions). Alternatively, for cable connectors, the terminal module and the plug insulator or the socket insulator may be fixed by glue injection in the final stage of assembly.

[0079] In other embodiments of the ultra-micro rectangular connector assembly: the second connecting end may not be an extruded round connecting pin, but a connecting pin with a rectangular cross-section. It does not need to be extruded to become round, and only needs to be cut out of the raw material to the designed size. Since the second connecting end and the sleeve section of the contact piece will be welded or crimped to fix them, the fixing effect can still be guaranteed.

[0080] The embodiment of the ultra-micro rectangular socket connector in the present invention is as follows: The specific structure of the ultra-micro rectangular socket connector is the same as that of the ultra-micro rectangular socket connector in any embodiment of the ultra-micro rectangular connector assembly described above, and will not be repeated here.

[0081] The embodiment of the ultra-micro rectangular plug connector in the present invention is as follows: The specific structure of the ultra-micro rectangular plug connector is the same as that of the ultra-micro rectangular plug connector in any embodiment of the ultra-micro rectangular connector assembly described above, and will not be repeated here.

[0082] The embodiment of the terminal module in the present invention is as follows: the specific structure of the terminal module is the same as the plug terminal module or the socket terminal module in any embodiment of the above-mentioned micro rectangular connector assembly, and will not be repeated here.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A terminal module, comprising a module insulator and a terminal fixed in the module insulator by injection molding, wherein both ends of the terminal are exposed from the module insulator to form a first connection end and a second connection end, the first connection end being used to connect to a printed circuit board or a wire (22), and characterized in that: The terminal module also includes a contact piece, which includes a sleeve section that is sleeved and fixed outside the second connection end of the terminal, and the contact piece also includes a pin section (5-2) for inserting into the contact piece of the adapter connector and contacting and conducting therewith, or a socket section (12-2) for inserting the contact piece of the adapter connector and contacting and conducting therewith.

2. The terminal module according to claim 1, wherein: The contact piece is provided with a barb for piercing the plug insulator (2) or the socket insulator (9).

3. The terminal module according to claim 1 or 2, characterized in that: The terminal is provided with a stop shoulder for engaging with the end face of the sleeve section when the contact piece is fitted.

4. The terminal module according to claim 1 or 2, characterized in that: A plurality of terminals are arranged side by side in the module insulator, and a distance between the second connection ends of two adjacent terminals is smaller than a distance between the first connection ends.

5. The terminal module according to claim 1 or 2, characterized in that: There are multiple terminals arranged side by side in the module insulator, and the first connection end and the second connection end of each terminal are arranged equidistantly. The length of the first connection end of each terminal, the length of the second connection end and the length of the contact connected to each second connection end are equal, and the ends of each contact are aligned.

6. The terminal module according to claim 1 or 2, characterized in that: The sleeve section is fixed to the second connecting end by welding.

7. An ultra-micro rectangular plug connector comprising a plug insulator (2) and a plug terminal module mounted on the plug insulator (2), characterized in that: The plug terminal module is a terminal module according to any one of claims 1 to 6, wherein the contact piece in the plug terminal module comprises a pin segment (5-2), and the pin segment (5-2) is used to be inserted into the contact piece of the ultra-micro rectangular socket connector and to be in contact with the contact piece.

8. An ultra-micro rectangular socket connector, comprising a socket insulator (9) and a socket terminal module mounted on the socket insulator (9), characterized in that: The socket terminal module is a terminal module according to any one of claims 1 to 6, wherein the contact piece in the socket terminal module comprises a socket section (12-2), and the socket section (12-2) is used for inserting the contact piece of the ultra-micro rectangular plug connector and contacting and conducting with it.

9. An ultra-micro rectangular connector assembly, comprising an ultra-micro rectangular plug connector and an ultra-micro rectangular socket connector used in conjunction therewith, characterized in that: The ultra-micro rectangular plug connector is the ultra-micro rectangular plug connector described in claim 7, and the ultra-micro rectangular socket connector is the ultra-micro rectangular socket connector described in claim 8.

10. The ultra-micro rectangular connector assembly according to claim 9, characterized in that: In the ultra-micro rectangular plug connector and the ultra-micro rectangular socket connector, the first connection end and the second connection end of the terminal in one connector extend in opposite directions, while the first connection end and the second connection end of the terminal in the other connector extend in perpendicular directions.

11. The ultra-micro rectangular connector assembly according to claim 9, wherein: The extending directions of the first connecting ends and the second connecting ends of the terminals in the ultra-micro rectangular plug connector and the ultra-micro rectangular socket connector are both perpendicular.

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